Quick view Details Michigan Motorsports Michigan Motorsports Billet LS Cathedral Port Rocker Arm Stands (Pair) Replaces 12552203 for LS1 LS2 LS6 LQ4 L33 LM7 LH6 LC9 4.8L 5.3L 5.7L 6.0L MSRP: Now: $99.99 Add to Cart Compare Quick view Details GM GM 12552203 Rocker Stands for Cathedral Port LS 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 Chevy GMC Pedestals MSRP: Now: $119.99 Add to Cart Compare Quick view Details Michigan Motorsports Michigan Motorsports 11 Degree 245cc Cathedral Port CNC Heads for LS1 LS2 LS6 LQ4 LQ9 LSX 5.7L 6.0L 383 408 416 6-Bolt MSRP: Was: Now: $2,799.99 - $2,999.98 Out of stock Compare Quick view Details PRC Precision Race Components Texas Speed PRC As-Cast Cathedral Port 220cc Cylinder Heads for 3.820" + Bore LS Engines MSRP: Now: $1,999.99 Add to Cart Compare Quick view Details PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Big Chamber 68cc Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt Heads TSP MSRP: Now: $2,299.99 Add to Cart Compare Quick view Details PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt 62cc Chamber Heads TSP MSRP: Now: $2,299.99 Add to Cart Compare Quick view Details PRC Precision Race Components Texas Speed PRC 6.0 CNC Ported 237cc Cathedral Port Cylinder Heads 6.0L LS2 LQ4 LQ9 408 TSP MSRP: Now: $2,949.99 Add to Cart Compare Quick view Details PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 MSRP: Now: $1,999.99 Out of stock Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 MSRP: Now: $2,999.00 Add to Cart Compare Quick view Details Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair MSRP: Now: $3,149.98 Add to Cart Compare Quick view Details AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) MSRP: Now: $1,426.00 Add to Cart Compare Quick view Details AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) MSRP: Now: $3,043.00 Out of stock Compare Quick view Michigan Motorsports Michigan Motorsports Billet LS Cathedral Port Rocker Arm Stands (Pair) Replaces 12552203 for LS1 LS2 LS6 LQ4 L33 LM7 LH6 LC9 4.8L 5.3L 5.7L 6.0L Michigan Motorsports Billet Rocker Stand Pair for Cathedral Port Heads Fits 1997–2013 LS-Based 4.8L, 5.3L, 5.7L & 1999–2006 6.0L Engines | Replaces GM 12552203 The Michigan Motorsports Billet Rocker Stand Pair is a... MSRP: Now: $99.99 Add to Cart Compare Quick view GM GM 12552203 Rocker Stands for Cathedral Port LS 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 Chevy GMC Pedestals Genuine GM 12552203 Rocker Arm Pedestal Stands OEM Rocker Pedestal Stands for Cathedral Port LS Engines The Genuine GM 12552203 Rocker Arm Pedestal Stands are factory replacement components designed for 1997–2013 LS-based engines equipped... MSRP: Now: $119.99 Add to Cart Compare Quick view Michigan Motorsports Michigan Motorsports 11 Degree 245cc Cathedral Port CNC Heads for LS1 LS2 LS6 LQ4 LQ9 LSX 5.7L 6.0L 383 408 416 6-Bolt Michigan Motorsports 11 Degree 245cc CNC Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines with Cathedral Port Intakes LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 383 408 416 These fully CNC machined cylinder heads from Michigan Motorsports feature a revised... MSRP: Was: Now: $2,799.99 - $2,999.98 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC As-Cast Cathedral Port 220cc Cylinder Heads for 3.820" + Bore LS Engines PRC 220cc As-Cast Cathedral Port 15-Degree LS Heads Fits 1999-2013 LS-Based Engines with 3.820" and larger bores Great option for 4.8L and 5.3L engines that have been machined .040" or more, or for 5.7L/6.0L Engines These 100% USA-cast and... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Big Chamber 68cc Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt Heads TSP PRC 225cc As-Cast Cathedral Port Big Chamber LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt 62cc Chamber Heads TSP PRC 225cc As-Cast Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake runners with... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.0 CNC Ported 237cc Cathedral Port Cylinder Heads 6.0L LS2 LQ4 LQ9 408 TSP PRC 237cc CNC 6.0L Cathedral Port LS Heads Fits 1999-2013 LS-Based Engines LS2 LQ4 LQ9 408 These 100% USA-cast and machined Precision Race Components cylinder heads feature 237cc fully CNC Ported intake runners. Designed for 4.000"+... MSRP: Now: $2,949.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 Texas Speed Brawler LS6 Style Cathedral Port CNC Cylinder Heads Fits 1997-2013 LS-Based Engines 4.8L 5.3L 5.7L 6.0L If you are looking for great factory style replacement/upgraded LS1/LS6 Cathedral Port cylinder head, look no further than these... MSRP: Now: $1,999.99 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and Larger Bore LS Engines when used with 4.030" or larger Head Gaskets 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 In Stock, Ready to Ship! The new Monster... MSRP: Now: $2,999.00 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair Trick Flow GenX 215cc LS1 Cylinder Heads - 64cc Chamber Fits 3.900"+ Bore Cathedral Port LS Engines LS1 LS6 LS2 LQ4 LQ9 Sold as a Pair of 2 Assembled Heads These Trick Flow GenX® 215 cathedral port cylinder heads for GM 5.7L LS1 engines are fully... MSRP: Now: $3,149.98 Add to Cart Compare Quick view AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads - 64cc Chambers Assembled Pair, Ideal for 4.8L and 5.3L Engines | In Stock & Ready to Ship! AFR's 210cc LS Enforcer cylinder heads feature their advanced Permanent Mold "As-Cast" Technology... MSRP: Now: $1,426.00 Add to Cart Compare Quick view AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) AFR 15° LS Cathedral Port 4-Bolt Cylinder Heads 230cc – Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) In Stock, Ready to Ship! AFR's 230cc LS1 Mongoose cylinder heads are recommended for aggressive street or... MSRP: Now: $3,043.00 Out of stock Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details GM GM 12552203 Rocker Stands for Cathedral Port LS 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 Chevy GMC Pedestals MSRP: Now: $119.99 Add to Cart Compare Quick view Details Michigan Motorsports Michigan Motorsports 11 Degree 245cc Cathedral Port CNC Heads for LS1 LS2 LS6 LQ4 LQ9 LSX 5.7L 6.0L 383 408 416 6-Bolt MSRP: Was: Now: $2,799.99 - $2,999.98 Out of stock Compare Quick view Details PRC Precision Race Components Texas Speed PRC As-Cast Cathedral Port 220cc Cylinder Heads for 3.820" + Bore LS Engines MSRP: Now: $1,999.99 Add to Cart Compare Quick view Details PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Big Chamber 68cc Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt Heads TSP MSRP: Now: $2,299.99 Add to Cart Compare Quick view Details PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt 62cc Chamber Heads TSP MSRP: Now: $2,299.99 Add to Cart Compare Quick view Details PRC Precision Race Components Texas Speed PRC 6.0 CNC Ported 237cc Cathedral Port Cylinder Heads 6.0L LS2 LQ4 LQ9 408 TSP MSRP: Now: $2,949.99 Add to Cart Compare Quick view Details PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 MSRP: Now: $1,999.99 Out of stock Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 MSRP: Now: $2,999.00 Add to Cart Compare Quick view Details Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair MSRP: Now: $3,149.98 Add to Cart Compare Quick view Details AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) MSRP: Now: $1,426.00 Add to Cart Compare Quick view Details AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) MSRP: Now: $3,043.00 Out of stock Compare Quick view Michigan Motorsports Michigan Motorsports Billet LS Cathedral Port Rocker Arm Stands (Pair) Replaces 12552203 for LS1 LS2 LS6 LQ4 L33 LM7 LH6 LC9 4.8L 5.3L 5.7L 6.0L Michigan Motorsports Billet Rocker Stand Pair for Cathedral Port Heads Fits 1997–2013 LS-Based 4.8L, 5.3L, 5.7L & 1999–2006 6.0L Engines | Replaces GM 12552203 The Michigan Motorsports Billet Rocker Stand Pair is a... MSRP: Now: $99.99 Add to Cart Compare Quick view GM GM 12552203 Rocker Stands for Cathedral Port LS 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 Chevy GMC Pedestals Genuine GM 12552203 Rocker Arm Pedestal Stands OEM Rocker Pedestal Stands for Cathedral Port LS Engines The Genuine GM 12552203 Rocker Arm Pedestal Stands are factory replacement components designed for 1997–2013 LS-based engines equipped... MSRP: Now: $119.99 Add to Cart Compare Quick view Michigan Motorsports Michigan Motorsports 11 Degree 245cc Cathedral Port CNC Heads for LS1 LS2 LS6 LQ4 LQ9 LSX 5.7L 6.0L 383 408 416 6-Bolt Michigan Motorsports 11 Degree 245cc CNC Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines with Cathedral Port Intakes LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 383 408 416 These fully CNC machined cylinder heads from Michigan Motorsports feature a revised... MSRP: Was: Now: $2,799.99 - $2,999.98 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC As-Cast Cathedral Port 220cc Cylinder Heads for 3.820" + Bore LS Engines PRC 220cc As-Cast Cathedral Port 15-Degree LS Heads Fits 1999-2013 LS-Based Engines with 3.820" and larger bores Great option for 4.8L and 5.3L engines that have been machined .040" or more, or for 5.7L/6.0L Engines These 100% USA-cast and... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Big Chamber 68cc Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt Heads TSP PRC 225cc As-Cast Cathedral Port Big Chamber LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt 62cc Chamber Heads TSP PRC 225cc As-Cast Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake runners with... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.0 CNC Ported 237cc Cathedral Port Cylinder Heads 6.0L LS2 LQ4 LQ9 408 TSP PRC 237cc CNC 6.0L Cathedral Port LS Heads Fits 1999-2013 LS-Based Engines LS2 LQ4 LQ9 408 These 100% USA-cast and machined Precision Race Components cylinder heads feature 237cc fully CNC Ported intake runners. Designed for 4.000"+... MSRP: Now: $2,949.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 Texas Speed Brawler LS6 Style Cathedral Port CNC Cylinder Heads Fits 1997-2013 LS-Based Engines 4.8L 5.3L 5.7L 6.0L If you are looking for great factory style replacement/upgraded LS1/LS6 Cathedral Port cylinder head, look no further than these... MSRP: Now: $1,999.99 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and Larger Bore LS Engines when used with 4.030" or larger Head Gaskets 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 In Stock, Ready to Ship! The new Monster... MSRP: Now: $2,999.00 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair Trick Flow GenX 215cc LS1 Cylinder Heads - 64cc Chamber Fits 3.900"+ Bore Cathedral Port LS Engines LS1 LS6 LS2 LQ4 LQ9 Sold as a Pair of 2 Assembled Heads These Trick Flow GenX® 215 cathedral port cylinder heads for GM 5.7L LS1 engines are fully... MSRP: Now: $3,149.98 Add to Cart Compare Quick view AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads - 64cc Chambers Assembled Pair, Ideal for 4.8L and 5.3L Engines | In Stock & Ready to Ship! AFR's 210cc LS Enforcer cylinder heads feature their advanced Permanent Mold "As-Cast" Technology... MSRP: Now: $1,426.00 Add to Cart Compare Quick view AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) AFR 15° LS Cathedral Port 4-Bolt Cylinder Heads 230cc – Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) In Stock, Ready to Ship! AFR's 230cc LS1 Mongoose cylinder heads are recommended for aggressive street or... MSRP: Now: $3,043.00 Out of stock Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details Michigan Motorsports Michigan Motorsports 11 Degree 245cc Cathedral Port CNC Heads for LS1 LS2 LS6 LQ4 LQ9 LSX 5.7L 6.0L 383 408 416 6-Bolt MSRP: Was: Now: $2,799.99 - $2,999.98 Out of stock Compare
Quick view Details PRC Precision Race Components Texas Speed PRC As-Cast Cathedral Port 220cc Cylinder Heads for 3.820" + Bore LS Engines MSRP: Now: $1,999.99 Add to Cart Compare Quick view Details PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Big Chamber 68cc Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt Heads TSP MSRP: Now: $2,299.99 Add to Cart Compare Quick view Details PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt 62cc Chamber Heads TSP MSRP: Now: $2,299.99 Add to Cart Compare Quick view Details PRC Precision Race Components Texas Speed PRC 6.0 CNC Ported 237cc Cathedral Port Cylinder Heads 6.0L LS2 LQ4 LQ9 408 TSP MSRP: Now: $2,949.99 Add to Cart Compare Quick view Details PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 MSRP: Now: $1,999.99 Out of stock Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 MSRP: Now: $2,999.00 Add to Cart Compare Quick view Details Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair MSRP: Now: $3,149.98 Add to Cart Compare Quick view Details AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) MSRP: Now: $1,426.00 Add to Cart Compare Quick view Details AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) MSRP: Now: $3,043.00 Out of stock Compare Quick view Michigan Motorsports Michigan Motorsports Billet LS Cathedral Port Rocker Arm Stands (Pair) Replaces 12552203 for LS1 LS2 LS6 LQ4 L33 LM7 LH6 LC9 4.8L 5.3L 5.7L 6.0L Michigan Motorsports Billet Rocker Stand Pair for Cathedral Port Heads Fits 1997–2013 LS-Based 4.8L, 5.3L, 5.7L & 1999–2006 6.0L Engines | Replaces GM 12552203 The Michigan Motorsports Billet Rocker Stand Pair is a... MSRP: Now: $99.99 Add to Cart Compare Quick view GM GM 12552203 Rocker Stands for Cathedral Port LS 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 Chevy GMC Pedestals Genuine GM 12552203 Rocker Arm Pedestal Stands OEM Rocker Pedestal Stands for Cathedral Port LS Engines The Genuine GM 12552203 Rocker Arm Pedestal Stands are factory replacement components designed for 1997–2013 LS-based engines equipped... MSRP: Now: $119.99 Add to Cart Compare Quick view Michigan Motorsports Michigan Motorsports 11 Degree 245cc Cathedral Port CNC Heads for LS1 LS2 LS6 LQ4 LQ9 LSX 5.7L 6.0L 383 408 416 6-Bolt Michigan Motorsports 11 Degree 245cc CNC Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines with Cathedral Port Intakes LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 383 408 416 These fully CNC machined cylinder heads from Michigan Motorsports feature a revised... MSRP: Was: Now: $2,799.99 - $2,999.98 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC As-Cast Cathedral Port 220cc Cylinder Heads for 3.820" + Bore LS Engines PRC 220cc As-Cast Cathedral Port 15-Degree LS Heads Fits 1999-2013 LS-Based Engines with 3.820" and larger bores Great option for 4.8L and 5.3L engines that have been machined .040" or more, or for 5.7L/6.0L Engines These 100% USA-cast and... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Big Chamber 68cc Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt Heads TSP PRC 225cc As-Cast Cathedral Port Big Chamber LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt 62cc Chamber Heads TSP PRC 225cc As-Cast Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake runners with... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.0 CNC Ported 237cc Cathedral Port Cylinder Heads 6.0L LS2 LQ4 LQ9 408 TSP PRC 237cc CNC 6.0L Cathedral Port LS Heads Fits 1999-2013 LS-Based Engines LS2 LQ4 LQ9 408 These 100% USA-cast and machined Precision Race Components cylinder heads feature 237cc fully CNC Ported intake runners. Designed for 4.000"+... MSRP: Now: $2,949.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 Texas Speed Brawler LS6 Style Cathedral Port CNC Cylinder Heads Fits 1997-2013 LS-Based Engines 4.8L 5.3L 5.7L 6.0L If you are looking for great factory style replacement/upgraded LS1/LS6 Cathedral Port cylinder head, look no further than these... MSRP: Now: $1,999.99 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and Larger Bore LS Engines when used with 4.030" or larger Head Gaskets 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 In Stock, Ready to Ship! The new Monster... MSRP: Now: $2,999.00 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair Trick Flow GenX 215cc LS1 Cylinder Heads - 64cc Chamber Fits 3.900"+ Bore Cathedral Port LS Engines LS1 LS6 LS2 LQ4 LQ9 Sold as a Pair of 2 Assembled Heads These Trick Flow GenX® 215 cathedral port cylinder heads for GM 5.7L LS1 engines are fully... MSRP: Now: $3,149.98 Add to Cart Compare Quick view AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads - 64cc Chambers Assembled Pair, Ideal for 4.8L and 5.3L Engines | In Stock & Ready to Ship! AFR's 210cc LS Enforcer cylinder heads feature their advanced Permanent Mold "As-Cast" Technology... MSRP: Now: $1,426.00 Add to Cart Compare Quick view AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) AFR 15° LS Cathedral Port 4-Bolt Cylinder Heads 230cc – Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) In Stock, Ready to Ship! AFR's 230cc LS1 Mongoose cylinder heads are recommended for aggressive street or... MSRP: Now: $3,043.00 Out of stock Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Big Chamber 68cc Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt Heads TSP MSRP: Now: $2,299.99 Add to Cart Compare Quick view Details PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt 62cc Chamber Heads TSP MSRP: Now: $2,299.99 Add to Cart Compare Quick view Details PRC Precision Race Components Texas Speed PRC 6.0 CNC Ported 237cc Cathedral Port Cylinder Heads 6.0L LS2 LQ4 LQ9 408 TSP MSRP: Now: $2,949.99 Add to Cart Compare Quick view Details PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 MSRP: Now: $1,999.99 Out of stock Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 MSRP: Now: $2,999.00 Add to Cart Compare Quick view Details Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair MSRP: Now: $3,149.98 Add to Cart Compare Quick view Details AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) MSRP: Now: $1,426.00 Add to Cart Compare Quick view Details AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) MSRP: Now: $3,043.00 Out of stock Compare Quick view Michigan Motorsports Michigan Motorsports Billet LS Cathedral Port Rocker Arm Stands (Pair) Replaces 12552203 for LS1 LS2 LS6 LQ4 L33 LM7 LH6 LC9 4.8L 5.3L 5.7L 6.0L Michigan Motorsports Billet Rocker Stand Pair for Cathedral Port Heads Fits 1997–2013 LS-Based 4.8L, 5.3L, 5.7L & 1999–2006 6.0L Engines | Replaces GM 12552203 The Michigan Motorsports Billet Rocker Stand Pair is a... MSRP: Now: $99.99 Add to Cart Compare Quick view GM GM 12552203 Rocker Stands for Cathedral Port LS 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 Chevy GMC Pedestals Genuine GM 12552203 Rocker Arm Pedestal Stands OEM Rocker Pedestal Stands for Cathedral Port LS Engines The Genuine GM 12552203 Rocker Arm Pedestal Stands are factory replacement components designed for 1997–2013 LS-based engines equipped... MSRP: Now: $119.99 Add to Cart Compare Quick view Michigan Motorsports Michigan Motorsports 11 Degree 245cc Cathedral Port CNC Heads for LS1 LS2 LS6 LQ4 LQ9 LSX 5.7L 6.0L 383 408 416 6-Bolt Michigan Motorsports 11 Degree 245cc CNC Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines with Cathedral Port Intakes LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 383 408 416 These fully CNC machined cylinder heads from Michigan Motorsports feature a revised... MSRP: Was: Now: $2,799.99 - $2,999.98 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC As-Cast Cathedral Port 220cc Cylinder Heads for 3.820" + Bore LS Engines PRC 220cc As-Cast Cathedral Port 15-Degree LS Heads Fits 1999-2013 LS-Based Engines with 3.820" and larger bores Great option for 4.8L and 5.3L engines that have been machined .040" or more, or for 5.7L/6.0L Engines These 100% USA-cast and... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Big Chamber 68cc Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt Heads TSP PRC 225cc As-Cast Cathedral Port Big Chamber LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt 62cc Chamber Heads TSP PRC 225cc As-Cast Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake runners with... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.0 CNC Ported 237cc Cathedral Port Cylinder Heads 6.0L LS2 LQ4 LQ9 408 TSP PRC 237cc CNC 6.0L Cathedral Port LS Heads Fits 1999-2013 LS-Based Engines LS2 LQ4 LQ9 408 These 100% USA-cast and machined Precision Race Components cylinder heads feature 237cc fully CNC Ported intake runners. Designed for 4.000"+... MSRP: Now: $2,949.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 Texas Speed Brawler LS6 Style Cathedral Port CNC Cylinder Heads Fits 1997-2013 LS-Based Engines 4.8L 5.3L 5.7L 6.0L If you are looking for great factory style replacement/upgraded LS1/LS6 Cathedral Port cylinder head, look no further than these... MSRP: Now: $1,999.99 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and Larger Bore LS Engines when used with 4.030" or larger Head Gaskets 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 In Stock, Ready to Ship! The new Monster... MSRP: Now: $2,999.00 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair Trick Flow GenX 215cc LS1 Cylinder Heads - 64cc Chamber Fits 3.900"+ Bore Cathedral Port LS Engines LS1 LS6 LS2 LQ4 LQ9 Sold as a Pair of 2 Assembled Heads These Trick Flow GenX® 215 cathedral port cylinder heads for GM 5.7L LS1 engines are fully... MSRP: Now: $3,149.98 Add to Cart Compare Quick view AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads - 64cc Chambers Assembled Pair, Ideal for 4.8L and 5.3L Engines | In Stock & Ready to Ship! AFR's 210cc LS Enforcer cylinder heads feature their advanced Permanent Mold "As-Cast" Technology... MSRP: Now: $1,426.00 Add to Cart Compare Quick view AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) AFR 15° LS Cathedral Port 4-Bolt Cylinder Heads 230cc – Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) In Stock, Ready to Ship! AFR's 230cc LS1 Mongoose cylinder heads are recommended for aggressive street or... MSRP: Now: $3,043.00 Out of stock Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt 62cc Chamber Heads TSP MSRP: Now: $2,299.99 Add to Cart Compare Quick view Details PRC Precision Race Components Texas Speed PRC 6.0 CNC Ported 237cc Cathedral Port Cylinder Heads 6.0L LS2 LQ4 LQ9 408 TSP MSRP: Now: $2,949.99 Add to Cart Compare Quick view Details PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 MSRP: Now: $1,999.99 Out of stock Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 MSRP: Now: $2,999.00 Add to Cart Compare Quick view Details Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair MSRP: Now: $3,149.98 Add to Cart Compare Quick view Details AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) MSRP: Now: $1,426.00 Add to Cart Compare Quick view Details AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) MSRP: Now: $3,043.00 Out of stock Compare Quick view Michigan Motorsports Michigan Motorsports Billet LS Cathedral Port Rocker Arm Stands (Pair) Replaces 12552203 for LS1 LS2 LS6 LQ4 L33 LM7 LH6 LC9 4.8L 5.3L 5.7L 6.0L Michigan Motorsports Billet Rocker Stand Pair for Cathedral Port Heads Fits 1997–2013 LS-Based 4.8L, 5.3L, 5.7L & 1999–2006 6.0L Engines | Replaces GM 12552203 The Michigan Motorsports Billet Rocker Stand Pair is a... MSRP: Now: $99.99 Add to Cart Compare Quick view GM GM 12552203 Rocker Stands for Cathedral Port LS 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 Chevy GMC Pedestals Genuine GM 12552203 Rocker Arm Pedestal Stands OEM Rocker Pedestal Stands for Cathedral Port LS Engines The Genuine GM 12552203 Rocker Arm Pedestal Stands are factory replacement components designed for 1997–2013 LS-based engines equipped... MSRP: Now: $119.99 Add to Cart Compare Quick view Michigan Motorsports Michigan Motorsports 11 Degree 245cc Cathedral Port CNC Heads for LS1 LS2 LS6 LQ4 LQ9 LSX 5.7L 6.0L 383 408 416 6-Bolt Michigan Motorsports 11 Degree 245cc CNC Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines with Cathedral Port Intakes LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 383 408 416 These fully CNC machined cylinder heads from Michigan Motorsports feature a revised... MSRP: Was: Now: $2,799.99 - $2,999.98 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC As-Cast Cathedral Port 220cc Cylinder Heads for 3.820" + Bore LS Engines PRC 220cc As-Cast Cathedral Port 15-Degree LS Heads Fits 1999-2013 LS-Based Engines with 3.820" and larger bores Great option for 4.8L and 5.3L engines that have been machined .040" or more, or for 5.7L/6.0L Engines These 100% USA-cast and... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Big Chamber 68cc Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt Heads TSP PRC 225cc As-Cast Cathedral Port Big Chamber LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt 62cc Chamber Heads TSP PRC 225cc As-Cast Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake runners with... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.0 CNC Ported 237cc Cathedral Port Cylinder Heads 6.0L LS2 LQ4 LQ9 408 TSP PRC 237cc CNC 6.0L Cathedral Port LS Heads Fits 1999-2013 LS-Based Engines LS2 LQ4 LQ9 408 These 100% USA-cast and machined Precision Race Components cylinder heads feature 237cc fully CNC Ported intake runners. Designed for 4.000"+... MSRP: Now: $2,949.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 Texas Speed Brawler LS6 Style Cathedral Port CNC Cylinder Heads Fits 1997-2013 LS-Based Engines 4.8L 5.3L 5.7L 6.0L If you are looking for great factory style replacement/upgraded LS1/LS6 Cathedral Port cylinder head, look no further than these... MSRP: Now: $1,999.99 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and Larger Bore LS Engines when used with 4.030" or larger Head Gaskets 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 In Stock, Ready to Ship! The new Monster... MSRP: Now: $2,999.00 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair Trick Flow GenX 215cc LS1 Cylinder Heads - 64cc Chamber Fits 3.900"+ Bore Cathedral Port LS Engines LS1 LS6 LS2 LQ4 LQ9 Sold as a Pair of 2 Assembled Heads These Trick Flow GenX® 215 cathedral port cylinder heads for GM 5.7L LS1 engines are fully... MSRP: Now: $3,149.98 Add to Cart Compare Quick view AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads - 64cc Chambers Assembled Pair, Ideal for 4.8L and 5.3L Engines | In Stock & Ready to Ship! AFR's 210cc LS Enforcer cylinder heads feature their advanced Permanent Mold "As-Cast" Technology... MSRP: Now: $1,426.00 Add to Cart Compare Quick view AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) AFR 15° LS Cathedral Port 4-Bolt Cylinder Heads 230cc – Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) In Stock, Ready to Ship! AFR's 230cc LS1 Mongoose cylinder heads are recommended for aggressive street or... MSRP: Now: $3,043.00 Out of stock Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details PRC Precision Race Components Texas Speed PRC 6.0 CNC Ported 237cc Cathedral Port Cylinder Heads 6.0L LS2 LQ4 LQ9 408 TSP MSRP: Now: $2,949.99 Add to Cart Compare Quick view Details PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 MSRP: Now: $1,999.99 Out of stock Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 MSRP: Now: $2,999.00 Add to Cart Compare Quick view Details Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair MSRP: Now: $3,149.98 Add to Cart Compare Quick view Details AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) MSRP: Now: $1,426.00 Add to Cart Compare Quick view Details AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) MSRP: Now: $3,043.00 Out of stock Compare Quick view Michigan Motorsports Michigan Motorsports Billet LS Cathedral Port Rocker Arm Stands (Pair) Replaces 12552203 for LS1 LS2 LS6 LQ4 L33 LM7 LH6 LC9 4.8L 5.3L 5.7L 6.0L Michigan Motorsports Billet Rocker Stand Pair for Cathedral Port Heads Fits 1997–2013 LS-Based 4.8L, 5.3L, 5.7L & 1999–2006 6.0L Engines | Replaces GM 12552203 The Michigan Motorsports Billet Rocker Stand Pair is a... MSRP: Now: $99.99 Add to Cart Compare Quick view GM GM 12552203 Rocker Stands for Cathedral Port LS 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 Chevy GMC Pedestals Genuine GM 12552203 Rocker Arm Pedestal Stands OEM Rocker Pedestal Stands for Cathedral Port LS Engines The Genuine GM 12552203 Rocker Arm Pedestal Stands are factory replacement components designed for 1997–2013 LS-based engines equipped... MSRP: Now: $119.99 Add to Cart Compare Quick view Michigan Motorsports Michigan Motorsports 11 Degree 245cc Cathedral Port CNC Heads for LS1 LS2 LS6 LQ4 LQ9 LSX 5.7L 6.0L 383 408 416 6-Bolt Michigan Motorsports 11 Degree 245cc CNC Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines with Cathedral Port Intakes LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 383 408 416 These fully CNC machined cylinder heads from Michigan Motorsports feature a revised... MSRP: Was: Now: $2,799.99 - $2,999.98 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC As-Cast Cathedral Port 220cc Cylinder Heads for 3.820" + Bore LS Engines PRC 220cc As-Cast Cathedral Port 15-Degree LS Heads Fits 1999-2013 LS-Based Engines with 3.820" and larger bores Great option for 4.8L and 5.3L engines that have been machined .040" or more, or for 5.7L/6.0L Engines These 100% USA-cast and... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Big Chamber 68cc Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt Heads TSP PRC 225cc As-Cast Cathedral Port Big Chamber LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt 62cc Chamber Heads TSP PRC 225cc As-Cast Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake runners with... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.0 CNC Ported 237cc Cathedral Port Cylinder Heads 6.0L LS2 LQ4 LQ9 408 TSP PRC 237cc CNC 6.0L Cathedral Port LS Heads Fits 1999-2013 LS-Based Engines LS2 LQ4 LQ9 408 These 100% USA-cast and machined Precision Race Components cylinder heads feature 237cc fully CNC Ported intake runners. Designed for 4.000"+... MSRP: Now: $2,949.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 Texas Speed Brawler LS6 Style Cathedral Port CNC Cylinder Heads Fits 1997-2013 LS-Based Engines 4.8L 5.3L 5.7L 6.0L If you are looking for great factory style replacement/upgraded LS1/LS6 Cathedral Port cylinder head, look no further than these... MSRP: Now: $1,999.99 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and Larger Bore LS Engines when used with 4.030" or larger Head Gaskets 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 In Stock, Ready to Ship! The new Monster... MSRP: Now: $2,999.00 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair Trick Flow GenX 215cc LS1 Cylinder Heads - 64cc Chamber Fits 3.900"+ Bore Cathedral Port LS Engines LS1 LS6 LS2 LQ4 LQ9 Sold as a Pair of 2 Assembled Heads These Trick Flow GenX® 215 cathedral port cylinder heads for GM 5.7L LS1 engines are fully... MSRP: Now: $3,149.98 Add to Cart Compare Quick view AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads - 64cc Chambers Assembled Pair, Ideal for 4.8L and 5.3L Engines | In Stock & Ready to Ship! AFR's 210cc LS Enforcer cylinder heads feature their advanced Permanent Mold "As-Cast" Technology... MSRP: Now: $1,426.00 Add to Cart Compare Quick view AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) AFR 15° LS Cathedral Port 4-Bolt Cylinder Heads 230cc – Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) In Stock, Ready to Ship! AFR's 230cc LS1 Mongoose cylinder heads are recommended for aggressive street or... MSRP: Now: $3,043.00 Out of stock Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 MSRP: Now: $1,999.99 Out of stock Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 MSRP: Now: $2,999.00 Add to Cart Compare Quick view Details Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair MSRP: Now: $3,149.98 Add to Cart Compare Quick view Details AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) MSRP: Now: $1,426.00 Add to Cart Compare Quick view Details AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) MSRP: Now: $3,043.00 Out of stock Compare Quick view Michigan Motorsports Michigan Motorsports Billet LS Cathedral Port Rocker Arm Stands (Pair) Replaces 12552203 for LS1 LS2 LS6 LQ4 L33 LM7 LH6 LC9 4.8L 5.3L 5.7L 6.0L Michigan Motorsports Billet Rocker Stand Pair for Cathedral Port Heads Fits 1997–2013 LS-Based 4.8L, 5.3L, 5.7L & 1999–2006 6.0L Engines | Replaces GM 12552203 The Michigan Motorsports Billet Rocker Stand Pair is a... MSRP: Now: $99.99 Add to Cart Compare Quick view GM GM 12552203 Rocker Stands for Cathedral Port LS 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 Chevy GMC Pedestals Genuine GM 12552203 Rocker Arm Pedestal Stands OEM Rocker Pedestal Stands for Cathedral Port LS Engines The Genuine GM 12552203 Rocker Arm Pedestal Stands are factory replacement components designed for 1997–2013 LS-based engines equipped... MSRP: Now: $119.99 Add to Cart Compare Quick view Michigan Motorsports Michigan Motorsports 11 Degree 245cc Cathedral Port CNC Heads for LS1 LS2 LS6 LQ4 LQ9 LSX 5.7L 6.0L 383 408 416 6-Bolt Michigan Motorsports 11 Degree 245cc CNC Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines with Cathedral Port Intakes LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 383 408 416 These fully CNC machined cylinder heads from Michigan Motorsports feature a revised... MSRP: Was: Now: $2,799.99 - $2,999.98 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC As-Cast Cathedral Port 220cc Cylinder Heads for 3.820" + Bore LS Engines PRC 220cc As-Cast Cathedral Port 15-Degree LS Heads Fits 1999-2013 LS-Based Engines with 3.820" and larger bores Great option for 4.8L and 5.3L engines that have been machined .040" or more, or for 5.7L/6.0L Engines These 100% USA-cast and... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Big Chamber 68cc Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt Heads TSP PRC 225cc As-Cast Cathedral Port Big Chamber LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt 62cc Chamber Heads TSP PRC 225cc As-Cast Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake runners with... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.0 CNC Ported 237cc Cathedral Port Cylinder Heads 6.0L LS2 LQ4 LQ9 408 TSP PRC 237cc CNC 6.0L Cathedral Port LS Heads Fits 1999-2013 LS-Based Engines LS2 LQ4 LQ9 408 These 100% USA-cast and machined Precision Race Components cylinder heads feature 237cc fully CNC Ported intake runners. Designed for 4.000"+... MSRP: Now: $2,949.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 Texas Speed Brawler LS6 Style Cathedral Port CNC Cylinder Heads Fits 1997-2013 LS-Based Engines 4.8L 5.3L 5.7L 6.0L If you are looking for great factory style replacement/upgraded LS1/LS6 Cathedral Port cylinder head, look no further than these... MSRP: Now: $1,999.99 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and Larger Bore LS Engines when used with 4.030" or larger Head Gaskets 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 In Stock, Ready to Ship! The new Monster... MSRP: Now: $2,999.00 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair Trick Flow GenX 215cc LS1 Cylinder Heads - 64cc Chamber Fits 3.900"+ Bore Cathedral Port LS Engines LS1 LS6 LS2 LQ4 LQ9 Sold as a Pair of 2 Assembled Heads These Trick Flow GenX® 215 cathedral port cylinder heads for GM 5.7L LS1 engines are fully... MSRP: Now: $3,149.98 Add to Cart Compare Quick view AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads - 64cc Chambers Assembled Pair, Ideal for 4.8L and 5.3L Engines | In Stock & Ready to Ship! AFR's 210cc LS Enforcer cylinder heads feature their advanced Permanent Mold "As-Cast" Technology... MSRP: Now: $1,426.00 Add to Cart Compare Quick view AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) AFR 15° LS Cathedral Port 4-Bolt Cylinder Heads 230cc – Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) In Stock, Ready to Ship! AFR's 230cc LS1 Mongoose cylinder heads are recommended for aggressive street or... MSRP: Now: $3,043.00 Out of stock Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 MSRP: Now: $2,999.00 Add to Cart Compare Quick view Details Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair MSRP: Now: $3,149.98 Add to Cart Compare Quick view Details AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) MSRP: Now: $1,426.00 Add to Cart Compare Quick view Details AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) MSRP: Now: $3,043.00 Out of stock Compare Quick view Michigan Motorsports Michigan Motorsports Billet LS Cathedral Port Rocker Arm Stands (Pair) Replaces 12552203 for LS1 LS2 LS6 LQ4 L33 LM7 LH6 LC9 4.8L 5.3L 5.7L 6.0L Michigan Motorsports Billet Rocker Stand Pair for Cathedral Port Heads Fits 1997–2013 LS-Based 4.8L, 5.3L, 5.7L & 1999–2006 6.0L Engines | Replaces GM 12552203 The Michigan Motorsports Billet Rocker Stand Pair is a... MSRP: Now: $99.99 Add to Cart Compare Quick view GM GM 12552203 Rocker Stands for Cathedral Port LS 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 Chevy GMC Pedestals Genuine GM 12552203 Rocker Arm Pedestal Stands OEM Rocker Pedestal Stands for Cathedral Port LS Engines The Genuine GM 12552203 Rocker Arm Pedestal Stands are factory replacement components designed for 1997–2013 LS-based engines equipped... MSRP: Now: $119.99 Add to Cart Compare Quick view Michigan Motorsports Michigan Motorsports 11 Degree 245cc Cathedral Port CNC Heads for LS1 LS2 LS6 LQ4 LQ9 LSX 5.7L 6.0L 383 408 416 6-Bolt Michigan Motorsports 11 Degree 245cc CNC Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines with Cathedral Port Intakes LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 383 408 416 These fully CNC machined cylinder heads from Michigan Motorsports feature a revised... MSRP: Was: Now: $2,799.99 - $2,999.98 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC As-Cast Cathedral Port 220cc Cylinder Heads for 3.820" + Bore LS Engines PRC 220cc As-Cast Cathedral Port 15-Degree LS Heads Fits 1999-2013 LS-Based Engines with 3.820" and larger bores Great option for 4.8L and 5.3L engines that have been machined .040" or more, or for 5.7L/6.0L Engines These 100% USA-cast and... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Big Chamber 68cc Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt Heads TSP PRC 225cc As-Cast Cathedral Port Big Chamber LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt 62cc Chamber Heads TSP PRC 225cc As-Cast Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake runners with... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.0 CNC Ported 237cc Cathedral Port Cylinder Heads 6.0L LS2 LQ4 LQ9 408 TSP PRC 237cc CNC 6.0L Cathedral Port LS Heads Fits 1999-2013 LS-Based Engines LS2 LQ4 LQ9 408 These 100% USA-cast and machined Precision Race Components cylinder heads feature 237cc fully CNC Ported intake runners. Designed for 4.000"+... MSRP: Now: $2,949.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 Texas Speed Brawler LS6 Style Cathedral Port CNC Cylinder Heads Fits 1997-2013 LS-Based Engines 4.8L 5.3L 5.7L 6.0L If you are looking for great factory style replacement/upgraded LS1/LS6 Cathedral Port cylinder head, look no further than these... MSRP: Now: $1,999.99 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and Larger Bore LS Engines when used with 4.030" or larger Head Gaskets 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 In Stock, Ready to Ship! The new Monster... MSRP: Now: $2,999.00 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair Trick Flow GenX 215cc LS1 Cylinder Heads - 64cc Chamber Fits 3.900"+ Bore Cathedral Port LS Engines LS1 LS6 LS2 LQ4 LQ9 Sold as a Pair of 2 Assembled Heads These Trick Flow GenX® 215 cathedral port cylinder heads for GM 5.7L LS1 engines are fully... MSRP: Now: $3,149.98 Add to Cart Compare Quick view AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads - 64cc Chambers Assembled Pair, Ideal for 4.8L and 5.3L Engines | In Stock & Ready to Ship! AFR's 210cc LS Enforcer cylinder heads feature their advanced Permanent Mold "As-Cast" Technology... MSRP: Now: $1,426.00 Add to Cart Compare Quick view AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) AFR 15° LS Cathedral Port 4-Bolt Cylinder Heads 230cc – Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) In Stock, Ready to Ship! AFR's 230cc LS1 Mongoose cylinder heads are recommended for aggressive street or... MSRP: Now: $3,043.00 Out of stock Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair MSRP: Now: $3,149.98 Add to Cart Compare Quick view Details AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) MSRP: Now: $1,426.00 Add to Cart Compare Quick view Details AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) MSRP: Now: $3,043.00 Out of stock Compare Quick view Michigan Motorsports Michigan Motorsports Billet LS Cathedral Port Rocker Arm Stands (Pair) Replaces 12552203 for LS1 LS2 LS6 LQ4 L33 LM7 LH6 LC9 4.8L 5.3L 5.7L 6.0L Michigan Motorsports Billet Rocker Stand Pair for Cathedral Port Heads Fits 1997–2013 LS-Based 4.8L, 5.3L, 5.7L & 1999–2006 6.0L Engines | Replaces GM 12552203 The Michigan Motorsports Billet Rocker Stand Pair is a... MSRP: Now: $99.99 Add to Cart Compare Quick view GM GM 12552203 Rocker Stands for Cathedral Port LS 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 Chevy GMC Pedestals Genuine GM 12552203 Rocker Arm Pedestal Stands OEM Rocker Pedestal Stands for Cathedral Port LS Engines The Genuine GM 12552203 Rocker Arm Pedestal Stands are factory replacement components designed for 1997–2013 LS-based engines equipped... MSRP: Now: $119.99 Add to Cart Compare Quick view Michigan Motorsports Michigan Motorsports 11 Degree 245cc Cathedral Port CNC Heads for LS1 LS2 LS6 LQ4 LQ9 LSX 5.7L 6.0L 383 408 416 6-Bolt Michigan Motorsports 11 Degree 245cc CNC Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines with Cathedral Port Intakes LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 383 408 416 These fully CNC machined cylinder heads from Michigan Motorsports feature a revised... MSRP: Was: Now: $2,799.99 - $2,999.98 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC As-Cast Cathedral Port 220cc Cylinder Heads for 3.820" + Bore LS Engines PRC 220cc As-Cast Cathedral Port 15-Degree LS Heads Fits 1999-2013 LS-Based Engines with 3.820" and larger bores Great option for 4.8L and 5.3L engines that have been machined .040" or more, or for 5.7L/6.0L Engines These 100% USA-cast and... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Big Chamber 68cc Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt Heads TSP PRC 225cc As-Cast Cathedral Port Big Chamber LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt 62cc Chamber Heads TSP PRC 225cc As-Cast Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake runners with... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.0 CNC Ported 237cc Cathedral Port Cylinder Heads 6.0L LS2 LQ4 LQ9 408 TSP PRC 237cc CNC 6.0L Cathedral Port LS Heads Fits 1999-2013 LS-Based Engines LS2 LQ4 LQ9 408 These 100% USA-cast and machined Precision Race Components cylinder heads feature 237cc fully CNC Ported intake runners. Designed for 4.000"+... MSRP: Now: $2,949.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 Texas Speed Brawler LS6 Style Cathedral Port CNC Cylinder Heads Fits 1997-2013 LS-Based Engines 4.8L 5.3L 5.7L 6.0L If you are looking for great factory style replacement/upgraded LS1/LS6 Cathedral Port cylinder head, look no further than these... MSRP: Now: $1,999.99 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and Larger Bore LS Engines when used with 4.030" or larger Head Gaskets 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 In Stock, Ready to Ship! The new Monster... MSRP: Now: $2,999.00 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair Trick Flow GenX 215cc LS1 Cylinder Heads - 64cc Chamber Fits 3.900"+ Bore Cathedral Port LS Engines LS1 LS6 LS2 LQ4 LQ9 Sold as a Pair of 2 Assembled Heads These Trick Flow GenX® 215 cathedral port cylinder heads for GM 5.7L LS1 engines are fully... MSRP: Now: $3,149.98 Add to Cart Compare Quick view AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads - 64cc Chambers Assembled Pair, Ideal for 4.8L and 5.3L Engines | In Stock & Ready to Ship! AFR's 210cc LS Enforcer cylinder heads feature their advanced Permanent Mold "As-Cast" Technology... MSRP: Now: $1,426.00 Add to Cart Compare Quick view AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) AFR 15° LS Cathedral Port 4-Bolt Cylinder Heads 230cc – Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) In Stock, Ready to Ship! AFR's 230cc LS1 Mongoose cylinder heads are recommended for aggressive street or... MSRP: Now: $3,043.00 Out of stock Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) MSRP: Now: $1,426.00 Add to Cart Compare Quick view Details AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) MSRP: Now: $3,043.00 Out of stock Compare Quick view Michigan Motorsports Michigan Motorsports Billet LS Cathedral Port Rocker Arm Stands (Pair) Replaces 12552203 for LS1 LS2 LS6 LQ4 L33 LM7 LH6 LC9 4.8L 5.3L 5.7L 6.0L Michigan Motorsports Billet Rocker Stand Pair for Cathedral Port Heads Fits 1997–2013 LS-Based 4.8L, 5.3L, 5.7L & 1999–2006 6.0L Engines | Replaces GM 12552203 The Michigan Motorsports Billet Rocker Stand Pair is a... MSRP: Now: $99.99 Add to Cart Compare Quick view GM GM 12552203 Rocker Stands for Cathedral Port LS 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 Chevy GMC Pedestals Genuine GM 12552203 Rocker Arm Pedestal Stands OEM Rocker Pedestal Stands for Cathedral Port LS Engines The Genuine GM 12552203 Rocker Arm Pedestal Stands are factory replacement components designed for 1997–2013 LS-based engines equipped... MSRP: Now: $119.99 Add to Cart Compare Quick view Michigan Motorsports Michigan Motorsports 11 Degree 245cc Cathedral Port CNC Heads for LS1 LS2 LS6 LQ4 LQ9 LSX 5.7L 6.0L 383 408 416 6-Bolt Michigan Motorsports 11 Degree 245cc CNC Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines with Cathedral Port Intakes LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 383 408 416 These fully CNC machined cylinder heads from Michigan Motorsports feature a revised... MSRP: Was: Now: $2,799.99 - $2,999.98 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC As-Cast Cathedral Port 220cc Cylinder Heads for 3.820" + Bore LS Engines PRC 220cc As-Cast Cathedral Port 15-Degree LS Heads Fits 1999-2013 LS-Based Engines with 3.820" and larger bores Great option for 4.8L and 5.3L engines that have been machined .040" or more, or for 5.7L/6.0L Engines These 100% USA-cast and... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Big Chamber 68cc Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt Heads TSP PRC 225cc As-Cast Cathedral Port Big Chamber LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt 62cc Chamber Heads TSP PRC 225cc As-Cast Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake runners with... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.0 CNC Ported 237cc Cathedral Port Cylinder Heads 6.0L LS2 LQ4 LQ9 408 TSP PRC 237cc CNC 6.0L Cathedral Port LS Heads Fits 1999-2013 LS-Based Engines LS2 LQ4 LQ9 408 These 100% USA-cast and machined Precision Race Components cylinder heads feature 237cc fully CNC Ported intake runners. Designed for 4.000"+... MSRP: Now: $2,949.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 Texas Speed Brawler LS6 Style Cathedral Port CNC Cylinder Heads Fits 1997-2013 LS-Based Engines 4.8L 5.3L 5.7L 6.0L If you are looking for great factory style replacement/upgraded LS1/LS6 Cathedral Port cylinder head, look no further than these... MSRP: Now: $1,999.99 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and Larger Bore LS Engines when used with 4.030" or larger Head Gaskets 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 In Stock, Ready to Ship! The new Monster... MSRP: Now: $2,999.00 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair Trick Flow GenX 215cc LS1 Cylinder Heads - 64cc Chamber Fits 3.900"+ Bore Cathedral Port LS Engines LS1 LS6 LS2 LQ4 LQ9 Sold as a Pair of 2 Assembled Heads These Trick Flow GenX® 215 cathedral port cylinder heads for GM 5.7L LS1 engines are fully... MSRP: Now: $3,149.98 Add to Cart Compare Quick view AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads - 64cc Chambers Assembled Pair, Ideal for 4.8L and 5.3L Engines | In Stock & Ready to Ship! AFR's 210cc LS Enforcer cylinder heads feature their advanced Permanent Mold "As-Cast" Technology... MSRP: Now: $1,426.00 Add to Cart Compare Quick view AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) AFR 15° LS Cathedral Port 4-Bolt Cylinder Heads 230cc – Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) In Stock, Ready to Ship! AFR's 230cc LS1 Mongoose cylinder heads are recommended for aggressive street or... MSRP: Now: $3,043.00 Out of stock Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) MSRP: Now: $3,043.00 Out of stock Compare Quick view Michigan Motorsports Michigan Motorsports Billet LS Cathedral Port Rocker Arm Stands (Pair) Replaces 12552203 for LS1 LS2 LS6 LQ4 L33 LM7 LH6 LC9 4.8L 5.3L 5.7L 6.0L Michigan Motorsports Billet Rocker Stand Pair for Cathedral Port Heads Fits 1997–2013 LS-Based 4.8L, 5.3L, 5.7L & 1999–2006 6.0L Engines | Replaces GM 12552203 The Michigan Motorsports Billet Rocker Stand Pair is a... MSRP: Now: $99.99 Add to Cart Compare Quick view GM GM 12552203 Rocker Stands for Cathedral Port LS 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 Chevy GMC Pedestals Genuine GM 12552203 Rocker Arm Pedestal Stands OEM Rocker Pedestal Stands for Cathedral Port LS Engines The Genuine GM 12552203 Rocker Arm Pedestal Stands are factory replacement components designed for 1997–2013 LS-based engines equipped... MSRP: Now: $119.99 Add to Cart Compare Quick view Michigan Motorsports Michigan Motorsports 11 Degree 245cc Cathedral Port CNC Heads for LS1 LS2 LS6 LQ4 LQ9 LSX 5.7L 6.0L 383 408 416 6-Bolt Michigan Motorsports 11 Degree 245cc CNC Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines with Cathedral Port Intakes LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 383 408 416 These fully CNC machined cylinder heads from Michigan Motorsports feature a revised... MSRP: Was: Now: $2,799.99 - $2,999.98 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC As-Cast Cathedral Port 220cc Cylinder Heads for 3.820" + Bore LS Engines PRC 220cc As-Cast Cathedral Port 15-Degree LS Heads Fits 1999-2013 LS-Based Engines with 3.820" and larger bores Great option for 4.8L and 5.3L engines that have been machined .040" or more, or for 5.7L/6.0L Engines These 100% USA-cast and... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Big Chamber 68cc Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt Heads TSP PRC 225cc As-Cast Cathedral Port Big Chamber LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt 62cc Chamber Heads TSP PRC 225cc As-Cast Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake runners with... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.0 CNC Ported 237cc Cathedral Port Cylinder Heads 6.0L LS2 LQ4 LQ9 408 TSP PRC 237cc CNC 6.0L Cathedral Port LS Heads Fits 1999-2013 LS-Based Engines LS2 LQ4 LQ9 408 These 100% USA-cast and machined Precision Race Components cylinder heads feature 237cc fully CNC Ported intake runners. Designed for 4.000"+... MSRP: Now: $2,949.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 Texas Speed Brawler LS6 Style Cathedral Port CNC Cylinder Heads Fits 1997-2013 LS-Based Engines 4.8L 5.3L 5.7L 6.0L If you are looking for great factory style replacement/upgraded LS1/LS6 Cathedral Port cylinder head, look no further than these... MSRP: Now: $1,999.99 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and Larger Bore LS Engines when used with 4.030" or larger Head Gaskets 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 In Stock, Ready to Ship! The new Monster... MSRP: Now: $2,999.00 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair Trick Flow GenX 215cc LS1 Cylinder Heads - 64cc Chamber Fits 3.900"+ Bore Cathedral Port LS Engines LS1 LS6 LS2 LQ4 LQ9 Sold as a Pair of 2 Assembled Heads These Trick Flow GenX® 215 cathedral port cylinder heads for GM 5.7L LS1 engines are fully... MSRP: Now: $3,149.98 Add to Cart Compare Quick view AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads - 64cc Chambers Assembled Pair, Ideal for 4.8L and 5.3L Engines | In Stock & Ready to Ship! AFR's 210cc LS Enforcer cylinder heads feature their advanced Permanent Mold "As-Cast" Technology... MSRP: Now: $1,426.00 Add to Cart Compare Quick view AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) AFR 15° LS Cathedral Port 4-Bolt Cylinder Heads 230cc – Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) In Stock, Ready to Ship! AFR's 230cc LS1 Mongoose cylinder heads are recommended for aggressive street or... MSRP: Now: $3,043.00 Out of stock Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Michigan Motorsports Michigan Motorsports Billet LS Cathedral Port Rocker Arm Stands (Pair) Replaces 12552203 for LS1 LS2 LS6 LQ4 L33 LM7 LH6 LC9 4.8L 5.3L 5.7L 6.0L Michigan Motorsports Billet Rocker Stand Pair for Cathedral Port Heads Fits 1997–2013 LS-Based 4.8L, 5.3L, 5.7L & 1999–2006 6.0L Engines | Replaces GM 12552203 The Michigan Motorsports Billet Rocker Stand Pair is a... MSRP: Now: $99.99 Add to Cart Compare Quick view GM GM 12552203 Rocker Stands for Cathedral Port LS 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 Chevy GMC Pedestals Genuine GM 12552203 Rocker Arm Pedestal Stands OEM Rocker Pedestal Stands for Cathedral Port LS Engines The Genuine GM 12552203 Rocker Arm Pedestal Stands are factory replacement components designed for 1997–2013 LS-based engines equipped... MSRP: Now: $119.99 Add to Cart Compare Quick view Michigan Motorsports Michigan Motorsports 11 Degree 245cc Cathedral Port CNC Heads for LS1 LS2 LS6 LQ4 LQ9 LSX 5.7L 6.0L 383 408 416 6-Bolt Michigan Motorsports 11 Degree 245cc CNC Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines with Cathedral Port Intakes LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 383 408 416 These fully CNC machined cylinder heads from Michigan Motorsports feature a revised... MSRP: Was: Now: $2,799.99 - $2,999.98 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC As-Cast Cathedral Port 220cc Cylinder Heads for 3.820" + Bore LS Engines PRC 220cc As-Cast Cathedral Port 15-Degree LS Heads Fits 1999-2013 LS-Based Engines with 3.820" and larger bores Great option for 4.8L and 5.3L engines that have been machined .040" or more, or for 5.7L/6.0L Engines These 100% USA-cast and... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Big Chamber 68cc Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt Heads TSP PRC 225cc As-Cast Cathedral Port Big Chamber LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt 62cc Chamber Heads TSP PRC 225cc As-Cast Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake runners with... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.0 CNC Ported 237cc Cathedral Port Cylinder Heads 6.0L LS2 LQ4 LQ9 408 TSP PRC 237cc CNC 6.0L Cathedral Port LS Heads Fits 1999-2013 LS-Based Engines LS2 LQ4 LQ9 408 These 100% USA-cast and machined Precision Race Components cylinder heads feature 237cc fully CNC Ported intake runners. Designed for 4.000"+... MSRP: Now: $2,949.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 Texas Speed Brawler LS6 Style Cathedral Port CNC Cylinder Heads Fits 1997-2013 LS-Based Engines 4.8L 5.3L 5.7L 6.0L If you are looking for great factory style replacement/upgraded LS1/LS6 Cathedral Port cylinder head, look no further than these... MSRP: Now: $1,999.99 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and Larger Bore LS Engines when used with 4.030" or larger Head Gaskets 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 In Stock, Ready to Ship! The new Monster... MSRP: Now: $2,999.00 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair Trick Flow GenX 215cc LS1 Cylinder Heads - 64cc Chamber Fits 3.900"+ Bore Cathedral Port LS Engines LS1 LS6 LS2 LQ4 LQ9 Sold as a Pair of 2 Assembled Heads These Trick Flow GenX® 215 cathedral port cylinder heads for GM 5.7L LS1 engines are fully... MSRP: Now: $3,149.98 Add to Cart Compare Quick view AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads - 64cc Chambers Assembled Pair, Ideal for 4.8L and 5.3L Engines | In Stock & Ready to Ship! AFR's 210cc LS Enforcer cylinder heads feature their advanced Permanent Mold "As-Cast" Technology... MSRP: Now: $1,426.00 Add to Cart Compare Quick view AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) AFR 15° LS Cathedral Port 4-Bolt Cylinder Heads 230cc – Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) In Stock, Ready to Ship! AFR's 230cc LS1 Mongoose cylinder heads are recommended for aggressive street or... MSRP: Now: $3,043.00 Out of stock Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view GM GM 12552203 Rocker Stands for Cathedral Port LS 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 Chevy GMC Pedestals Genuine GM 12552203 Rocker Arm Pedestal Stands OEM Rocker Pedestal Stands for Cathedral Port LS Engines The Genuine GM 12552203 Rocker Arm Pedestal Stands are factory replacement components designed for 1997–2013 LS-based engines equipped... MSRP: Now: $119.99 Add to Cart Compare Quick view Michigan Motorsports Michigan Motorsports 11 Degree 245cc Cathedral Port CNC Heads for LS1 LS2 LS6 LQ4 LQ9 LSX 5.7L 6.0L 383 408 416 6-Bolt Michigan Motorsports 11 Degree 245cc CNC Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines with Cathedral Port Intakes LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 383 408 416 These fully CNC machined cylinder heads from Michigan Motorsports feature a revised... MSRP: Was: Now: $2,799.99 - $2,999.98 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC As-Cast Cathedral Port 220cc Cylinder Heads for 3.820" + Bore LS Engines PRC 220cc As-Cast Cathedral Port 15-Degree LS Heads Fits 1999-2013 LS-Based Engines with 3.820" and larger bores Great option for 4.8L and 5.3L engines that have been machined .040" or more, or for 5.7L/6.0L Engines These 100% USA-cast and... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Big Chamber 68cc Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt Heads TSP PRC 225cc As-Cast Cathedral Port Big Chamber LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt 62cc Chamber Heads TSP PRC 225cc As-Cast Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake runners with... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.0 CNC Ported 237cc Cathedral Port Cylinder Heads 6.0L LS2 LQ4 LQ9 408 TSP PRC 237cc CNC 6.0L Cathedral Port LS Heads Fits 1999-2013 LS-Based Engines LS2 LQ4 LQ9 408 These 100% USA-cast and machined Precision Race Components cylinder heads feature 237cc fully CNC Ported intake runners. Designed for 4.000"+... MSRP: Now: $2,949.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 Texas Speed Brawler LS6 Style Cathedral Port CNC Cylinder Heads Fits 1997-2013 LS-Based Engines 4.8L 5.3L 5.7L 6.0L If you are looking for great factory style replacement/upgraded LS1/LS6 Cathedral Port cylinder head, look no further than these... MSRP: Now: $1,999.99 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and Larger Bore LS Engines when used with 4.030" or larger Head Gaskets 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 In Stock, Ready to Ship! The new Monster... MSRP: Now: $2,999.00 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair Trick Flow GenX 215cc LS1 Cylinder Heads - 64cc Chamber Fits 3.900"+ Bore Cathedral Port LS Engines LS1 LS6 LS2 LQ4 LQ9 Sold as a Pair of 2 Assembled Heads These Trick Flow GenX® 215 cathedral port cylinder heads for GM 5.7L LS1 engines are fully... MSRP: Now: $3,149.98 Add to Cart Compare Quick view AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads - 64cc Chambers Assembled Pair, Ideal for 4.8L and 5.3L Engines | In Stock & Ready to Ship! AFR's 210cc LS Enforcer cylinder heads feature their advanced Permanent Mold "As-Cast" Technology... MSRP: Now: $1,426.00 Add to Cart Compare Quick view AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) AFR 15° LS Cathedral Port 4-Bolt Cylinder Heads 230cc – Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) In Stock, Ready to Ship! AFR's 230cc LS1 Mongoose cylinder heads are recommended for aggressive street or... MSRP: Now: $3,043.00 Out of stock Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Michigan Motorsports Michigan Motorsports 11 Degree 245cc Cathedral Port CNC Heads for LS1 LS2 LS6 LQ4 LQ9 LSX 5.7L 6.0L 383 408 416 6-Bolt Michigan Motorsports 11 Degree 245cc CNC Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines with Cathedral Port Intakes LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 383 408 416 These fully CNC machined cylinder heads from Michigan Motorsports feature a revised... MSRP: Was: Now: $2,799.99 - $2,999.98 Out of stock Compare
Quick view PRC Precision Race Components Texas Speed PRC As-Cast Cathedral Port 220cc Cylinder Heads for 3.820" + Bore LS Engines PRC 220cc As-Cast Cathedral Port 15-Degree LS Heads Fits 1999-2013 LS-Based Engines with 3.820" and larger bores Great option for 4.8L and 5.3L engines that have been machined .040" or more, or for 5.7L/6.0L Engines These 100% USA-cast and... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Big Chamber 68cc Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt Heads TSP PRC 225cc As-Cast Cathedral Port Big Chamber LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt 62cc Chamber Heads TSP PRC 225cc As-Cast Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake runners with... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.0 CNC Ported 237cc Cathedral Port Cylinder Heads 6.0L LS2 LQ4 LQ9 408 TSP PRC 237cc CNC 6.0L Cathedral Port LS Heads Fits 1999-2013 LS-Based Engines LS2 LQ4 LQ9 408 These 100% USA-cast and machined Precision Race Components cylinder heads feature 237cc fully CNC Ported intake runners. Designed for 4.000"+... MSRP: Now: $2,949.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 Texas Speed Brawler LS6 Style Cathedral Port CNC Cylinder Heads Fits 1997-2013 LS-Based Engines 4.8L 5.3L 5.7L 6.0L If you are looking for great factory style replacement/upgraded LS1/LS6 Cathedral Port cylinder head, look no further than these... MSRP: Now: $1,999.99 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and Larger Bore LS Engines when used with 4.030" or larger Head Gaskets 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 In Stock, Ready to Ship! The new Monster... MSRP: Now: $2,999.00 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair Trick Flow GenX 215cc LS1 Cylinder Heads - 64cc Chamber Fits 3.900"+ Bore Cathedral Port LS Engines LS1 LS6 LS2 LQ4 LQ9 Sold as a Pair of 2 Assembled Heads These Trick Flow GenX® 215 cathedral port cylinder heads for GM 5.7L LS1 engines are fully... MSRP: Now: $3,149.98 Add to Cart Compare Quick view AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads - 64cc Chambers Assembled Pair, Ideal for 4.8L and 5.3L Engines | In Stock & Ready to Ship! AFR's 210cc LS Enforcer cylinder heads feature their advanced Permanent Mold "As-Cast" Technology... MSRP: Now: $1,426.00 Add to Cart Compare Quick view AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) AFR 15° LS Cathedral Port 4-Bolt Cylinder Heads 230cc – Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) In Stock, Ready to Ship! AFR's 230cc LS1 Mongoose cylinder heads are recommended for aggressive street or... MSRP: Now: $3,043.00 Out of stock Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Big Chamber 68cc Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt Heads TSP PRC 225cc As-Cast Cathedral Port Big Chamber LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt 62cc Chamber Heads TSP PRC 225cc As-Cast Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake runners with... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.0 CNC Ported 237cc Cathedral Port Cylinder Heads 6.0L LS2 LQ4 LQ9 408 TSP PRC 237cc CNC 6.0L Cathedral Port LS Heads Fits 1999-2013 LS-Based Engines LS2 LQ4 LQ9 408 These 100% USA-cast and machined Precision Race Components cylinder heads feature 237cc fully CNC Ported intake runners. Designed for 4.000"+... MSRP: Now: $2,949.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 Texas Speed Brawler LS6 Style Cathedral Port CNC Cylinder Heads Fits 1997-2013 LS-Based Engines 4.8L 5.3L 5.7L 6.0L If you are looking for great factory style replacement/upgraded LS1/LS6 Cathedral Port cylinder head, look no further than these... MSRP: Now: $1,999.99 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and Larger Bore LS Engines when used with 4.030" or larger Head Gaskets 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 In Stock, Ready to Ship! The new Monster... MSRP: Now: $2,999.00 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair Trick Flow GenX 215cc LS1 Cylinder Heads - 64cc Chamber Fits 3.900"+ Bore Cathedral Port LS Engines LS1 LS6 LS2 LQ4 LQ9 Sold as a Pair of 2 Assembled Heads These Trick Flow GenX® 215 cathedral port cylinder heads for GM 5.7L LS1 engines are fully... MSRP: Now: $3,149.98 Add to Cart Compare Quick view AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads - 64cc Chambers Assembled Pair, Ideal for 4.8L and 5.3L Engines | In Stock & Ready to Ship! AFR's 210cc LS Enforcer cylinder heads feature their advanced Permanent Mold "As-Cast" Technology... MSRP: Now: $1,426.00 Add to Cart Compare Quick view AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) AFR 15° LS Cathedral Port 4-Bolt Cylinder Heads 230cc – Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) In Stock, Ready to Ship! AFR's 230cc LS1 Mongoose cylinder heads are recommended for aggressive street or... MSRP: Now: $3,043.00 Out of stock Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view PRC Precision Race Components Texas Speed PRC 5.7 6.0 As-Cast 225cc Cathedral Port Cylinder Heads LS1 LS6 LS2 LQ4 LQ9 5.7L 6.0L 6-Bolt 62cc Chamber Heads TSP PRC 225cc As-Cast Cathedral Port LS Heads Fits 1997-2013 LS-Based Engines 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 These 100% USA-cast and machined Precision Race Components cylinder heads combine high flowing 225cc "As-cast" intake runners with... MSRP: Now: $2,299.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.0 CNC Ported 237cc Cathedral Port Cylinder Heads 6.0L LS2 LQ4 LQ9 408 TSP PRC 237cc CNC 6.0L Cathedral Port LS Heads Fits 1999-2013 LS-Based Engines LS2 LQ4 LQ9 408 These 100% USA-cast and machined Precision Race Components cylinder heads feature 237cc fully CNC Ported intake runners. Designed for 4.000"+... MSRP: Now: $2,949.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 Texas Speed Brawler LS6 Style Cathedral Port CNC Cylinder Heads Fits 1997-2013 LS-Based Engines 4.8L 5.3L 5.7L 6.0L If you are looking for great factory style replacement/upgraded LS1/LS6 Cathedral Port cylinder head, look no further than these... MSRP: Now: $1,999.99 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and Larger Bore LS Engines when used with 4.030" or larger Head Gaskets 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 In Stock, Ready to Ship! The new Monster... MSRP: Now: $2,999.00 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair Trick Flow GenX 215cc LS1 Cylinder Heads - 64cc Chamber Fits 3.900"+ Bore Cathedral Port LS Engines LS1 LS6 LS2 LQ4 LQ9 Sold as a Pair of 2 Assembled Heads These Trick Flow GenX® 215 cathedral port cylinder heads for GM 5.7L LS1 engines are fully... MSRP: Now: $3,149.98 Add to Cart Compare Quick view AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads - 64cc Chambers Assembled Pair, Ideal for 4.8L and 5.3L Engines | In Stock & Ready to Ship! AFR's 210cc LS Enforcer cylinder heads feature their advanced Permanent Mold "As-Cast" Technology... MSRP: Now: $1,426.00 Add to Cart Compare Quick view AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) AFR 15° LS Cathedral Port 4-Bolt Cylinder Heads 230cc – Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) In Stock, Ready to Ship! AFR's 230cc LS1 Mongoose cylinder heads are recommended for aggressive street or... MSRP: Now: $3,043.00 Out of stock Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view PRC Precision Race Components Texas Speed PRC 6.0 CNC Ported 237cc Cathedral Port Cylinder Heads 6.0L LS2 LQ4 LQ9 408 TSP PRC 237cc CNC 6.0L Cathedral Port LS Heads Fits 1999-2013 LS-Based Engines LS2 LQ4 LQ9 408 These 100% USA-cast and machined Precision Race Components cylinder heads feature 237cc fully CNC Ported intake runners. Designed for 4.000"+... MSRP: Now: $2,949.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 Texas Speed Brawler LS6 Style Cathedral Port CNC Cylinder Heads Fits 1997-2013 LS-Based Engines 4.8L 5.3L 5.7L 6.0L If you are looking for great factory style replacement/upgraded LS1/LS6 Cathedral Port cylinder head, look no further than these... MSRP: Now: $1,999.99 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and Larger Bore LS Engines when used with 4.030" or larger Head Gaskets 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 In Stock, Ready to Ship! The new Monster... MSRP: Now: $2,999.00 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair Trick Flow GenX 215cc LS1 Cylinder Heads - 64cc Chamber Fits 3.900"+ Bore Cathedral Port LS Engines LS1 LS6 LS2 LQ4 LQ9 Sold as a Pair of 2 Assembled Heads These Trick Flow GenX® 215 cathedral port cylinder heads for GM 5.7L LS1 engines are fully... MSRP: Now: $3,149.98 Add to Cart Compare Quick view AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads - 64cc Chambers Assembled Pair, Ideal for 4.8L and 5.3L Engines | In Stock & Ready to Ship! AFR's 210cc LS Enforcer cylinder heads feature their advanced Permanent Mold "As-Cast" Technology... MSRP: Now: $1,426.00 Add to Cart Compare Quick view AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) AFR 15° LS Cathedral Port 4-Bolt Cylinder Heads 230cc – Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) In Stock, Ready to Ship! AFR's 230cc LS1 Mongoose cylinder heads are recommended for aggressive street or... MSRP: Now: $3,043.00 Out of stock Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view PRC Precision Race Components Texas Speed Brawler LS6 Style CNC Cathedral Port Heads TSP 4.8 5.3 5.7 6.0 LS1 LS2 LS6 LQ4 LM7 L33 Texas Speed Brawler LS6 Style Cathedral Port CNC Cylinder Heads Fits 1997-2013 LS-Based Engines 4.8L 5.3L 5.7L 6.0L If you are looking for great factory style replacement/upgraded LS1/LS6 Cathedral Port cylinder head, look no further than these... MSRP: Now: $1,999.99 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and Larger Bore LS Engines when used with 4.030" or larger Head Gaskets 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 In Stock, Ready to Ship! The new Monster... MSRP: Now: $2,999.00 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair Trick Flow GenX 215cc LS1 Cylinder Heads - 64cc Chamber Fits 3.900"+ Bore Cathedral Port LS Engines LS1 LS6 LS2 LQ4 LQ9 Sold as a Pair of 2 Assembled Heads These Trick Flow GenX® 215 cathedral port cylinder heads for GM 5.7L LS1 engines are fully... MSRP: Now: $3,149.98 Add to Cart Compare Quick view AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads - 64cc Chambers Assembled Pair, Ideal for 4.8L and 5.3L Engines | In Stock & Ready to Ship! AFR's 210cc LS Enforcer cylinder heads feature their advanced Permanent Mold "As-Cast" Technology... MSRP: Now: $1,426.00 Add to Cart Compare Quick view AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) AFR 15° LS Cathedral Port 4-Bolt Cylinder Heads 230cc – Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) In Stock, Ready to Ship! AFR's 230cc LS1 Mongoose cylinder heads are recommended for aggressive street or... MSRP: Now: $3,043.00 Out of stock Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and Larger Bore LS Engines when used with 4.030" or larger Head Gaskets 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 In Stock, Ready to Ship! The new Monster... MSRP: Now: $2,999.00 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair Trick Flow GenX 215cc LS1 Cylinder Heads - 64cc Chamber Fits 3.900"+ Bore Cathedral Port LS Engines LS1 LS6 LS2 LQ4 LQ9 Sold as a Pair of 2 Assembled Heads These Trick Flow GenX® 215 cathedral port cylinder heads for GM 5.7L LS1 engines are fully... MSRP: Now: $3,149.98 Add to Cart Compare Quick view AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads - 64cc Chambers Assembled Pair, Ideal for 4.8L and 5.3L Engines | In Stock & Ready to Ship! AFR's 210cc LS Enforcer cylinder heads feature their advanced Permanent Mold "As-Cast" Technology... MSRP: Now: $1,426.00 Add to Cart Compare Quick view AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) AFR 15° LS Cathedral Port 4-Bolt Cylinder Heads 230cc – Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) In Stock, Ready to Ship! AFR's 230cc LS1 Mongoose cylinder heads are recommended for aggressive street or... MSRP: Now: $3,043.00 Out of stock Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Trick Flow Specialties Trick Flow 215cc LS1 Cylinder Heads | 4 Bolt | 64cc Chamber | 3.900"+ Bore | Assembled Pair Trick Flow GenX 215cc LS1 Cylinder Heads - 64cc Chamber Fits 3.900"+ Bore Cathedral Port LS Engines LS1 LS6 LS2 LQ4 LQ9 Sold as a Pair of 2 Assembled Heads These Trick Flow GenX® 215 cathedral port cylinder heads for GM 5.7L LS1 engines are fully... MSRP: Now: $3,149.98 Add to Cart Compare Quick view AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads - 64cc Chambers Assembled Pair, Ideal for 4.8L and 5.3L Engines | In Stock & Ready to Ship! AFR's 210cc LS Enforcer cylinder heads feature their advanced Permanent Mold "As-Cast" Technology... MSRP: Now: $1,426.00 Add to Cart Compare Quick view AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) AFR 15° LS Cathedral Port 4-Bolt Cylinder Heads 230cc – Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) In Stock, Ready to Ship! AFR's 230cc LS1 Mongoose cylinder heads are recommended for aggressive street or... MSRP: Now: $3,043.00 Out of stock Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view AFR AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads for 4.8L 5.3L - 64cc Chambers, Assembled (Pair) AFR 15° LS 210cc Enforcer As-Cast Cylinder Heads - 64cc Chambers Assembled Pair, Ideal for 4.8L and 5.3L Engines | In Stock & Ready to Ship! AFR's 210cc LS Enforcer cylinder heads feature their advanced Permanent Mold "As-Cast" Technology... MSRP: Now: $1,426.00 Add to Cart Compare Quick view AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) AFR 15° LS Cathedral Port 4-Bolt Cylinder Heads 230cc – Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) In Stock, Ready to Ship! AFR's 230cc LS1 Mongoose cylinder heads are recommended for aggressive street or... MSRP: Now: $3,043.00 Out of stock Compare 1 2 Next 1 2 Next Compare Selected
Quick view AFR AFR 15° LS Cathedral Port 4-Bolt Mongoose 230cc Cylinder Heads - Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) AFR 15° LS Cathedral Port 4-Bolt Cylinder Heads 230cc – Fully CNC Ported, 65cc Chambers, 3.900"+ Bore, Assembled (Pair) In Stock, Ready to Ship! AFR's 230cc LS1 Mongoose cylinder heads are recommended for aggressive street or... MSRP: Now: $3,043.00 Out of stock Compare 1 2 Next 1 2 Next Compare Selected
