Quick view Details Michigan Motorsports Michigan Motorsports Billet LS3 Rectangle Port Rocker Arm Stands (Pair) Replaces 12600936 for LS3 L99 L76 L77 L92 L96 L94 LY6 L9H LSA 6.0L 6.2L MSRP: Now: $99.99 Add to Cart Compare Quick view Details GM GM 12600936 LS3 Rocker Stands for 2007+ 6.0L 6.2L LS3 L99 L76 L77 L92 LY6 L94 L9H L96 Rectangle Port Pedestal Stand Pair MSRP: Now: $109.99 Add to Cart Compare Quick view Details PRC Precision Race Components Texas Speed Brawler 6.2 LS3 CNC Rectangle Port 257cc Cylinder Heads 6.2 LS3 L99 LSA LS9 L92 L9H L94 TSP MSRP: Now: $1,999.99 Add to Cart Compare Quick view Details PRC Precision Race Components Texas Speed PRC 6.2 LS3 As-Cast 257cc Rectangle Port Cylinder Heads 6.0L 6.2L LS3 L99 LSA LS9 L92 L76 L77 L96 LY6 TSP MSRP: Now: $2,299.99 Out of stock Compare Quick view Details PRC Precision Race Components Texas Speed PRC 6.2 LS3 CNC Ported Rectangle Port 260cc Cylinder Heads 6.2L LS3 L99 LSA LS9 L92 TSP MSRP: Now: $2,949.99 Add to Cart Compare Quick view Details AFR AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) MSRP: Now: $1,526.00 Add to Cart Compare Quick view Details AFR AFR 12° LS3 Rectangle Port 6-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) MSRP: Now: $3,188.00 Add to Cart Compare Quick view Details AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) MSRP: Now: $3,188.00 Out of stock Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Details Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair MSRP: Now: $3,199.98 Add to Cart Compare Quick view Details Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair MSRP: Now: $3,999.98 Out of stock Compare Quick view Michigan Motorsports Michigan Motorsports Billet LS3 Rectangle Port Rocker Arm Stands (Pair) Replaces 12600936 for LS3 L99 L76 L77 L92 L96 L94 LY6 L9H LSA 6.0L 6.2L Michigan Motorsports Billet Rocker Stands for Rectangle Port LS Heads Fits 2007–Later Rectangle Port 6.0L & 6.2L LS Engines – Casting #821, #823, #5364 The Michigan Motorsports Billet Rocker Stands are engineered to deliver... MSRP: Now: $99.99 Add to Cart Compare Quick view GM GM 12600936 LS3 Rocker Stands for 2007+ 6.0L 6.2L LS3 L99 L76 L77 L92 LY6 L94 L9H L96 Rectangle Port Pedestal Stand Pair Genuine GM 12600936 Rocker Arm Pedestal Stands Fits 2007–Later Rectangle Port 6.0L & 6.2L LS Engines – Casting #821, #823, #5364 The Genuine GM 12600936 Rocker Arm Pedestal Stands are factory-original replacements designed for... MSRP: Now: $109.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler 6.2 LS3 CNC Rectangle Port 257cc Cylinder Heads 6.2 LS3 L99 LSA LS9 L92 L9H L94 TSP Texas Speed Brawler LS3 257cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based Engines 6.2L LS3 L99 LSA LS9 L92 L9H L94 If you are looking for great factory style replacement/upgraded LS3-style cylinder head, look no further... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 As-Cast 257cc Rectangle Port Cylinder Heads 6.0L 6.2L LS3 L99 LSA LS9 L92 L76 L77 L96 LY6 TSP PRC LS3 As-Cast 257cc Rectangle Port LS Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.0L and 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 L96 L76 L77 LY6 These 100% USA-cast and machined Precision Race Components cylinder heads combine high... MSRP: Now: $2,299.99 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 CNC Ported Rectangle Port 260cc Cylinder Heads 6.2L LS3 L99 LSA LS9 L92 TSP PRC LS3 260cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 These 100% USA-cast and machined Precision Race Components cylinder heads feature 260cc fully CNC Ported intake... MSRP: Now: $2,949.99 Add to Cart Compare Quick view AFR AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR's 238cc LS3 Enforcer As-Cast Cylinder Heads offer proven performance in a budget-friendly package. Designed using AFR’s Permanent... MSRP: Now: $1,526.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 6-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 6-Bolt Cylinder Heads 260cc – Fully CNC Ported, 69cc Chambers, Assembled (Pair) In Stock, Ready to Ship! AFR's 260cc LS3 Mongoose cylinder heads feature 100% CNC ported intake runners, exhaust runners, and combustion chambers... MSRP: Now: $3,188.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 4-Bolt Cylinder Heads – 260cc CNC Ported | 69cc Chambers (Pair) Fully Assembled Rectangle Port LS3 Heads | High-Performance Street & Race Applications AFR’s 260cc LS3 Mongoose cylinder heads feature fully CNC-ported... MSRP: Now: $3,188.00 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) Frankenstein M311 Monster Series 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold In Stock, Ready To Ship! The Monster Series M311 273cc LS3 Cylinder Heads are... MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) Frankenstein M311 BOOST Monster 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold Frankenstein Engine Dynamics' Boost Monster Series M311 273cc LS3 Cylinder... MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair Trick Flow 255cc LS3 Cylinder Heads - 69CC Chamber Fits 4.000"+ Bore Rectangle Port LS Engines LS3 L99 L76 L77 LSA L92 L96 L94 L9H Sold as a Pair of 2 Assembled 4-Bolt Heads Trick Flow engineers combined the best features of factory GM LS3 and... MSRP: Now: $3,199.98 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair Trick Flow GenX 280cc LS3 Cylinder Heads 6-Bolt HIP Castings| 12 Degree | 67cc Chamber | 4.000"+ Bore Sold as a Pair of 2 Assembled Heads Building on the features that make the GenX® 255 for GM LS3 great—like 12° valve angles and... MSRP: Now: $3,999.98 Out of stock Compare Compare Selected × OK
Quick view Details GM GM 12600936 LS3 Rocker Stands for 2007+ 6.0L 6.2L LS3 L99 L76 L77 L92 LY6 L94 L9H L96 Rectangle Port Pedestal Stand Pair MSRP: Now: $109.99 Add to Cart Compare Quick view Details PRC Precision Race Components Texas Speed Brawler 6.2 LS3 CNC Rectangle Port 257cc Cylinder Heads 6.2 LS3 L99 LSA LS9 L92 L9H L94 TSP MSRP: Now: $1,999.99 Add to Cart Compare Quick view Details PRC Precision Race Components Texas Speed PRC 6.2 LS3 As-Cast 257cc Rectangle Port Cylinder Heads 6.0L 6.2L LS3 L99 LSA LS9 L92 L76 L77 L96 LY6 TSP MSRP: Now: $2,299.99 Out of stock Compare Quick view Details PRC Precision Race Components Texas Speed PRC 6.2 LS3 CNC Ported Rectangle Port 260cc Cylinder Heads 6.2L LS3 L99 LSA LS9 L92 TSP MSRP: Now: $2,949.99 Add to Cart Compare Quick view Details AFR AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) MSRP: Now: $1,526.00 Add to Cart Compare Quick view Details AFR AFR 12° LS3 Rectangle Port 6-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) MSRP: Now: $3,188.00 Add to Cart Compare Quick view Details AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) MSRP: Now: $3,188.00 Out of stock Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Details Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair MSRP: Now: $3,199.98 Add to Cart Compare Quick view Details Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair MSRP: Now: $3,999.98 Out of stock Compare Quick view Michigan Motorsports Michigan Motorsports Billet LS3 Rectangle Port Rocker Arm Stands (Pair) Replaces 12600936 for LS3 L99 L76 L77 L92 L96 L94 LY6 L9H LSA 6.0L 6.2L Michigan Motorsports Billet Rocker Stands for Rectangle Port LS Heads Fits 2007–Later Rectangle Port 6.0L & 6.2L LS Engines – Casting #821, #823, #5364 The Michigan Motorsports Billet Rocker Stands are engineered to deliver... MSRP: Now: $99.99 Add to Cart Compare Quick view GM GM 12600936 LS3 Rocker Stands for 2007+ 6.0L 6.2L LS3 L99 L76 L77 L92 LY6 L94 L9H L96 Rectangle Port Pedestal Stand Pair Genuine GM 12600936 Rocker Arm Pedestal Stands Fits 2007–Later Rectangle Port 6.0L & 6.2L LS Engines – Casting #821, #823, #5364 The Genuine GM 12600936 Rocker Arm Pedestal Stands are factory-original replacements designed for... MSRP: Now: $109.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler 6.2 LS3 CNC Rectangle Port 257cc Cylinder Heads 6.2 LS3 L99 LSA LS9 L92 L9H L94 TSP Texas Speed Brawler LS3 257cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based Engines 6.2L LS3 L99 LSA LS9 L92 L9H L94 If you are looking for great factory style replacement/upgraded LS3-style cylinder head, look no further... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 As-Cast 257cc Rectangle Port Cylinder Heads 6.0L 6.2L LS3 L99 LSA LS9 L92 L76 L77 L96 LY6 TSP PRC LS3 As-Cast 257cc Rectangle Port LS Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.0L and 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 L96 L76 L77 LY6 These 100% USA-cast and machined Precision Race Components cylinder heads combine high... MSRP: Now: $2,299.99 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 CNC Ported Rectangle Port 260cc Cylinder Heads 6.2L LS3 L99 LSA LS9 L92 TSP PRC LS3 260cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 These 100% USA-cast and machined Precision Race Components cylinder heads feature 260cc fully CNC Ported intake... MSRP: Now: $2,949.99 Add to Cart Compare Quick view AFR AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR's 238cc LS3 Enforcer As-Cast Cylinder Heads offer proven performance in a budget-friendly package. Designed using AFR’s Permanent... MSRP: Now: $1,526.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 6-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 6-Bolt Cylinder Heads 260cc – Fully CNC Ported, 69cc Chambers, Assembled (Pair) In Stock, Ready to Ship! AFR's 260cc LS3 Mongoose cylinder heads feature 100% CNC ported intake runners, exhaust runners, and combustion chambers... MSRP: Now: $3,188.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 4-Bolt Cylinder Heads – 260cc CNC Ported | 69cc Chambers (Pair) Fully Assembled Rectangle Port LS3 Heads | High-Performance Street & Race Applications AFR’s 260cc LS3 Mongoose cylinder heads feature fully CNC-ported... MSRP: Now: $3,188.00 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) Frankenstein M311 Monster Series 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold In Stock, Ready To Ship! The Monster Series M311 273cc LS3 Cylinder Heads are... MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) Frankenstein M311 BOOST Monster 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold Frankenstein Engine Dynamics' Boost Monster Series M311 273cc LS3 Cylinder... MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair Trick Flow 255cc LS3 Cylinder Heads - 69CC Chamber Fits 4.000"+ Bore Rectangle Port LS Engines LS3 L99 L76 L77 LSA L92 L96 L94 L9H Sold as a Pair of 2 Assembled 4-Bolt Heads Trick Flow engineers combined the best features of factory GM LS3 and... MSRP: Now: $3,199.98 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair Trick Flow GenX 280cc LS3 Cylinder Heads 6-Bolt HIP Castings| 12 Degree | 67cc Chamber | 4.000"+ Bore Sold as a Pair of 2 Assembled Heads Building on the features that make the GenX® 255 for GM LS3 great—like 12° valve angles and... MSRP: Now: $3,999.98 Out of stock Compare Compare Selected × OK
Quick view Details PRC Precision Race Components Texas Speed Brawler 6.2 LS3 CNC Rectangle Port 257cc Cylinder Heads 6.2 LS3 L99 LSA LS9 L92 L9H L94 TSP MSRP: Now: $1,999.99 Add to Cart Compare Quick view Details PRC Precision Race Components Texas Speed PRC 6.2 LS3 As-Cast 257cc Rectangle Port Cylinder Heads 6.0L 6.2L LS3 L99 LSA LS9 L92 L76 L77 L96 LY6 TSP MSRP: Now: $2,299.99 Out of stock Compare Quick view Details PRC Precision Race Components Texas Speed PRC 6.2 LS3 CNC Ported Rectangle Port 260cc Cylinder Heads 6.2L LS3 L99 LSA LS9 L92 TSP MSRP: Now: $2,949.99 Add to Cart Compare Quick view Details AFR AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) MSRP: Now: $1,526.00 Add to Cart Compare Quick view Details AFR AFR 12° LS3 Rectangle Port 6-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) MSRP: Now: $3,188.00 Add to Cart Compare Quick view Details AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) MSRP: Now: $3,188.00 Out of stock Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Details Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair MSRP: Now: $3,199.98 Add to Cart Compare Quick view Details Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair MSRP: Now: $3,999.98 Out of stock Compare Quick view Michigan Motorsports Michigan Motorsports Billet LS3 Rectangle Port Rocker Arm Stands (Pair) Replaces 12600936 for LS3 L99 L76 L77 L92 L96 L94 LY6 L9H LSA 6.0L 6.2L Michigan Motorsports Billet Rocker Stands for Rectangle Port LS Heads Fits 2007–Later Rectangle Port 6.0L & 6.2L LS Engines – Casting #821, #823, #5364 The Michigan Motorsports Billet Rocker Stands are engineered to deliver... MSRP: Now: $99.99 Add to Cart Compare Quick view GM GM 12600936 LS3 Rocker Stands for 2007+ 6.0L 6.2L LS3 L99 L76 L77 L92 LY6 L94 L9H L96 Rectangle Port Pedestal Stand Pair Genuine GM 12600936 Rocker Arm Pedestal Stands Fits 2007–Later Rectangle Port 6.0L & 6.2L LS Engines – Casting #821, #823, #5364 The Genuine GM 12600936 Rocker Arm Pedestal Stands are factory-original replacements designed for... MSRP: Now: $109.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler 6.2 LS3 CNC Rectangle Port 257cc Cylinder Heads 6.2 LS3 L99 LSA LS9 L92 L9H L94 TSP Texas Speed Brawler LS3 257cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based Engines 6.2L LS3 L99 LSA LS9 L92 L9H L94 If you are looking for great factory style replacement/upgraded LS3-style cylinder head, look no further... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 As-Cast 257cc Rectangle Port Cylinder Heads 6.0L 6.2L LS3 L99 LSA LS9 L92 L76 L77 L96 LY6 TSP PRC LS3 As-Cast 257cc Rectangle Port LS Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.0L and 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 L96 L76 L77 LY6 These 100% USA-cast and machined Precision Race Components cylinder heads combine high... MSRP: Now: $2,299.99 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 CNC Ported Rectangle Port 260cc Cylinder Heads 6.2L LS3 L99 LSA LS9 L92 TSP PRC LS3 260cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 These 100% USA-cast and machined Precision Race Components cylinder heads feature 260cc fully CNC Ported intake... MSRP: Now: $2,949.99 Add to Cart Compare Quick view AFR AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR's 238cc LS3 Enforcer As-Cast Cylinder Heads offer proven performance in a budget-friendly package. Designed using AFR’s Permanent... MSRP: Now: $1,526.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 6-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 6-Bolt Cylinder Heads 260cc – Fully CNC Ported, 69cc Chambers, Assembled (Pair) In Stock, Ready to Ship! AFR's 260cc LS3 Mongoose cylinder heads feature 100% CNC ported intake runners, exhaust runners, and combustion chambers... MSRP: Now: $3,188.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 4-Bolt Cylinder Heads – 260cc CNC Ported | 69cc Chambers (Pair) Fully Assembled Rectangle Port LS3 Heads | High-Performance Street & Race Applications AFR’s 260cc LS3 Mongoose cylinder heads feature fully CNC-ported... MSRP: Now: $3,188.00 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) Frankenstein M311 Monster Series 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold In Stock, Ready To Ship! The Monster Series M311 273cc LS3 Cylinder Heads are... MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) Frankenstein M311 BOOST Monster 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold Frankenstein Engine Dynamics' Boost Monster Series M311 273cc LS3 Cylinder... MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair Trick Flow 255cc LS3 Cylinder Heads - 69CC Chamber Fits 4.000"+ Bore Rectangle Port LS Engines LS3 L99 L76 L77 LSA L92 L96 L94 L9H Sold as a Pair of 2 Assembled 4-Bolt Heads Trick Flow engineers combined the best features of factory GM LS3 and... MSRP: Now: $3,199.98 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair Trick Flow GenX 280cc LS3 Cylinder Heads 6-Bolt HIP Castings| 12 Degree | 67cc Chamber | 4.000"+ Bore Sold as a Pair of 2 Assembled Heads Building on the features that make the GenX® 255 for GM LS3 great—like 12° valve angles and... MSRP: Now: $3,999.98 Out of stock Compare Compare Selected × OK
Quick view Details PRC Precision Race Components Texas Speed PRC 6.2 LS3 As-Cast 257cc Rectangle Port Cylinder Heads 6.0L 6.2L LS3 L99 LSA LS9 L92 L76 L77 L96 LY6 TSP MSRP: Now: $2,299.99 Out of stock Compare Quick view Details PRC Precision Race Components Texas Speed PRC 6.2 LS3 CNC Ported Rectangle Port 260cc Cylinder Heads 6.2L LS3 L99 LSA LS9 L92 TSP MSRP: Now: $2,949.99 Add to Cart Compare Quick view Details AFR AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) MSRP: Now: $1,526.00 Add to Cart Compare Quick view Details AFR AFR 12° LS3 Rectangle Port 6-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) MSRP: Now: $3,188.00 Add to Cart Compare Quick view Details AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) MSRP: Now: $3,188.00 Out of stock Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Details Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair MSRP: Now: $3,199.98 Add to Cart Compare Quick view Details Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair MSRP: Now: $3,999.98 Out of stock Compare Quick view Michigan Motorsports Michigan Motorsports Billet LS3 Rectangle Port Rocker Arm Stands (Pair) Replaces 12600936 for LS3 L99 L76 L77 L92 L96 L94 LY6 L9H LSA 6.0L 6.2L Michigan Motorsports Billet Rocker Stands for Rectangle Port LS Heads Fits 2007–Later Rectangle Port 6.0L & 6.2L LS Engines – Casting #821, #823, #5364 The Michigan Motorsports Billet Rocker Stands are engineered to deliver... MSRP: Now: $99.99 Add to Cart Compare Quick view GM GM 12600936 LS3 Rocker Stands for 2007+ 6.0L 6.2L LS3 L99 L76 L77 L92 LY6 L94 L9H L96 Rectangle Port Pedestal Stand Pair Genuine GM 12600936 Rocker Arm Pedestal Stands Fits 2007–Later Rectangle Port 6.0L & 6.2L LS Engines – Casting #821, #823, #5364 The Genuine GM 12600936 Rocker Arm Pedestal Stands are factory-original replacements designed for... MSRP: Now: $109.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler 6.2 LS3 CNC Rectangle Port 257cc Cylinder Heads 6.2 LS3 L99 LSA LS9 L92 L9H L94 TSP Texas Speed Brawler LS3 257cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based Engines 6.2L LS3 L99 LSA LS9 L92 L9H L94 If you are looking for great factory style replacement/upgraded LS3-style cylinder head, look no further... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 As-Cast 257cc Rectangle Port Cylinder Heads 6.0L 6.2L LS3 L99 LSA LS9 L92 L76 L77 L96 LY6 TSP PRC LS3 As-Cast 257cc Rectangle Port LS Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.0L and 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 L96 L76 L77 LY6 These 100% USA-cast and machined Precision Race Components cylinder heads combine high... MSRP: Now: $2,299.99 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 CNC Ported Rectangle Port 260cc Cylinder Heads 6.2L LS3 L99 LSA LS9 L92 TSP PRC LS3 260cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 These 100% USA-cast and machined Precision Race Components cylinder heads feature 260cc fully CNC Ported intake... MSRP: Now: $2,949.99 Add to Cart Compare Quick view AFR AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR's 238cc LS3 Enforcer As-Cast Cylinder Heads offer proven performance in a budget-friendly package. Designed using AFR’s Permanent... MSRP: Now: $1,526.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 6-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 6-Bolt Cylinder Heads 260cc – Fully CNC Ported, 69cc Chambers, Assembled (Pair) In Stock, Ready to Ship! AFR's 260cc LS3 Mongoose cylinder heads feature 100% CNC ported intake runners, exhaust runners, and combustion chambers... MSRP: Now: $3,188.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 4-Bolt Cylinder Heads – 260cc CNC Ported | 69cc Chambers (Pair) Fully Assembled Rectangle Port LS3 Heads | High-Performance Street & Race Applications AFR’s 260cc LS3 Mongoose cylinder heads feature fully CNC-ported... MSRP: Now: $3,188.00 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) Frankenstein M311 Monster Series 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold In Stock, Ready To Ship! The Monster Series M311 273cc LS3 Cylinder Heads are... MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) Frankenstein M311 BOOST Monster 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold Frankenstein Engine Dynamics' Boost Monster Series M311 273cc LS3 Cylinder... MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair Trick Flow 255cc LS3 Cylinder Heads - 69CC Chamber Fits 4.000"+ Bore Rectangle Port LS Engines LS3 L99 L76 L77 LSA L92 L96 L94 L9H Sold as a Pair of 2 Assembled 4-Bolt Heads Trick Flow engineers combined the best features of factory GM LS3 and... MSRP: Now: $3,199.98 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair Trick Flow GenX 280cc LS3 Cylinder Heads 6-Bolt HIP Castings| 12 Degree | 67cc Chamber | 4.000"+ Bore Sold as a Pair of 2 Assembled Heads Building on the features that make the GenX® 255 for GM LS3 great—like 12° valve angles and... MSRP: Now: $3,999.98 Out of stock Compare Compare Selected × OK
Quick view Details PRC Precision Race Components Texas Speed PRC 6.2 LS3 CNC Ported Rectangle Port 260cc Cylinder Heads 6.2L LS3 L99 LSA LS9 L92 TSP MSRP: Now: $2,949.99 Add to Cart Compare Quick view Details AFR AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) MSRP: Now: $1,526.00 Add to Cart Compare Quick view Details AFR AFR 12° LS3 Rectangle Port 6-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) MSRP: Now: $3,188.00 Add to Cart Compare Quick view Details AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) MSRP: Now: $3,188.00 Out of stock Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Details Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair MSRP: Now: $3,199.98 Add to Cart Compare Quick view Details Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair MSRP: Now: $3,999.98 Out of stock Compare Quick view Michigan Motorsports Michigan Motorsports Billet LS3 Rectangle Port Rocker Arm Stands (Pair) Replaces 12600936 for LS3 L99 L76 L77 L92 L96 L94 LY6 L9H LSA 6.0L 6.2L Michigan Motorsports Billet Rocker Stands for Rectangle Port LS Heads Fits 2007–Later Rectangle Port 6.0L & 6.2L LS Engines – Casting #821, #823, #5364 The Michigan Motorsports Billet Rocker Stands are engineered to deliver... MSRP: Now: $99.99 Add to Cart Compare Quick view GM GM 12600936 LS3 Rocker Stands for 2007+ 6.0L 6.2L LS3 L99 L76 L77 L92 LY6 L94 L9H L96 Rectangle Port Pedestal Stand Pair Genuine GM 12600936 Rocker Arm Pedestal Stands Fits 2007–Later Rectangle Port 6.0L & 6.2L LS Engines – Casting #821, #823, #5364 The Genuine GM 12600936 Rocker Arm Pedestal Stands are factory-original replacements designed for... MSRP: Now: $109.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler 6.2 LS3 CNC Rectangle Port 257cc Cylinder Heads 6.2 LS3 L99 LSA LS9 L92 L9H L94 TSP Texas Speed Brawler LS3 257cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based Engines 6.2L LS3 L99 LSA LS9 L92 L9H L94 If you are looking for great factory style replacement/upgraded LS3-style cylinder head, look no further... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 As-Cast 257cc Rectangle Port Cylinder Heads 6.0L 6.2L LS3 L99 LSA LS9 L92 L76 L77 L96 LY6 TSP PRC LS3 As-Cast 257cc Rectangle Port LS Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.0L and 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 L96 L76 L77 LY6 These 100% USA-cast and machined Precision Race Components cylinder heads combine high... MSRP: Now: $2,299.99 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 CNC Ported Rectangle Port 260cc Cylinder Heads 6.2L LS3 L99 LSA LS9 L92 TSP PRC LS3 260cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 These 100% USA-cast and machined Precision Race Components cylinder heads feature 260cc fully CNC Ported intake... MSRP: Now: $2,949.99 Add to Cart Compare Quick view AFR AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR's 238cc LS3 Enforcer As-Cast Cylinder Heads offer proven performance in a budget-friendly package. Designed using AFR’s Permanent... MSRP: Now: $1,526.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 6-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 6-Bolt Cylinder Heads 260cc – Fully CNC Ported, 69cc Chambers, Assembled (Pair) In Stock, Ready to Ship! AFR's 260cc LS3 Mongoose cylinder heads feature 100% CNC ported intake runners, exhaust runners, and combustion chambers... MSRP: Now: $3,188.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 4-Bolt Cylinder Heads – 260cc CNC Ported | 69cc Chambers (Pair) Fully Assembled Rectangle Port LS3 Heads | High-Performance Street & Race Applications AFR’s 260cc LS3 Mongoose cylinder heads feature fully CNC-ported... MSRP: Now: $3,188.00 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) Frankenstein M311 Monster Series 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold In Stock, Ready To Ship! The Monster Series M311 273cc LS3 Cylinder Heads are... MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) Frankenstein M311 BOOST Monster 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold Frankenstein Engine Dynamics' Boost Monster Series M311 273cc LS3 Cylinder... MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair Trick Flow 255cc LS3 Cylinder Heads - 69CC Chamber Fits 4.000"+ Bore Rectangle Port LS Engines LS3 L99 L76 L77 LSA L92 L96 L94 L9H Sold as a Pair of 2 Assembled 4-Bolt Heads Trick Flow engineers combined the best features of factory GM LS3 and... MSRP: Now: $3,199.98 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair Trick Flow GenX 280cc LS3 Cylinder Heads 6-Bolt HIP Castings| 12 Degree | 67cc Chamber | 4.000"+ Bore Sold as a Pair of 2 Assembled Heads Building on the features that make the GenX® 255 for GM LS3 great—like 12° valve angles and... MSRP: Now: $3,999.98 Out of stock Compare Compare Selected × OK
Quick view Details AFR AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) MSRP: Now: $1,526.00 Add to Cart Compare Quick view Details AFR AFR 12° LS3 Rectangle Port 6-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) MSRP: Now: $3,188.00 Add to Cart Compare Quick view Details AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) MSRP: Now: $3,188.00 Out of stock Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Details Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair MSRP: Now: $3,199.98 Add to Cart Compare Quick view Details Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair MSRP: Now: $3,999.98 Out of stock Compare Quick view Michigan Motorsports Michigan Motorsports Billet LS3 Rectangle Port Rocker Arm Stands (Pair) Replaces 12600936 for LS3 L99 L76 L77 L92 L96 L94 LY6 L9H LSA 6.0L 6.2L Michigan Motorsports Billet Rocker Stands for Rectangle Port LS Heads Fits 2007–Later Rectangle Port 6.0L & 6.2L LS Engines – Casting #821, #823, #5364 The Michigan Motorsports Billet Rocker Stands are engineered to deliver... MSRP: Now: $99.99 Add to Cart Compare Quick view GM GM 12600936 LS3 Rocker Stands for 2007+ 6.0L 6.2L LS3 L99 L76 L77 L92 LY6 L94 L9H L96 Rectangle Port Pedestal Stand Pair Genuine GM 12600936 Rocker Arm Pedestal Stands Fits 2007–Later Rectangle Port 6.0L & 6.2L LS Engines – Casting #821, #823, #5364 The Genuine GM 12600936 Rocker Arm Pedestal Stands are factory-original replacements designed for... MSRP: Now: $109.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler 6.2 LS3 CNC Rectangle Port 257cc Cylinder Heads 6.2 LS3 L99 LSA LS9 L92 L9H L94 TSP Texas Speed Brawler LS3 257cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based Engines 6.2L LS3 L99 LSA LS9 L92 L9H L94 If you are looking for great factory style replacement/upgraded LS3-style cylinder head, look no further... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 As-Cast 257cc Rectangle Port Cylinder Heads 6.0L 6.2L LS3 L99 LSA LS9 L92 L76 L77 L96 LY6 TSP PRC LS3 As-Cast 257cc Rectangle Port LS Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.0L and 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 L96 L76 L77 LY6 These 100% USA-cast and machined Precision Race Components cylinder heads combine high... MSRP: Now: $2,299.99 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 CNC Ported Rectangle Port 260cc Cylinder Heads 6.2L LS3 L99 LSA LS9 L92 TSP PRC LS3 260cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 These 100% USA-cast and machined Precision Race Components cylinder heads feature 260cc fully CNC Ported intake... MSRP: Now: $2,949.99 Add to Cart Compare Quick view AFR AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR's 238cc LS3 Enforcer As-Cast Cylinder Heads offer proven performance in a budget-friendly package. Designed using AFR’s Permanent... MSRP: Now: $1,526.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 6-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 6-Bolt Cylinder Heads 260cc – Fully CNC Ported, 69cc Chambers, Assembled (Pair) In Stock, Ready to Ship! AFR's 260cc LS3 Mongoose cylinder heads feature 100% CNC ported intake runners, exhaust runners, and combustion chambers... MSRP: Now: $3,188.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 4-Bolt Cylinder Heads – 260cc CNC Ported | 69cc Chambers (Pair) Fully Assembled Rectangle Port LS3 Heads | High-Performance Street & Race Applications AFR’s 260cc LS3 Mongoose cylinder heads feature fully CNC-ported... MSRP: Now: $3,188.00 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) Frankenstein M311 Monster Series 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold In Stock, Ready To Ship! The Monster Series M311 273cc LS3 Cylinder Heads are... MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) Frankenstein M311 BOOST Monster 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold Frankenstein Engine Dynamics' Boost Monster Series M311 273cc LS3 Cylinder... MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair Trick Flow 255cc LS3 Cylinder Heads - 69CC Chamber Fits 4.000"+ Bore Rectangle Port LS Engines LS3 L99 L76 L77 LSA L92 L96 L94 L9H Sold as a Pair of 2 Assembled 4-Bolt Heads Trick Flow engineers combined the best features of factory GM LS3 and... MSRP: Now: $3,199.98 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair Trick Flow GenX 280cc LS3 Cylinder Heads 6-Bolt HIP Castings| 12 Degree | 67cc Chamber | 4.000"+ Bore Sold as a Pair of 2 Assembled Heads Building on the features that make the GenX® 255 for GM LS3 great—like 12° valve angles and... MSRP: Now: $3,999.98 Out of stock Compare Compare Selected × OK
Quick view Details AFR AFR 12° LS3 Rectangle Port 6-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) MSRP: Now: $3,188.00 Add to Cart Compare Quick view Details AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) MSRP: Now: $3,188.00 Out of stock Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Details Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair MSRP: Now: $3,199.98 Add to Cart Compare Quick view Details Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair MSRP: Now: $3,999.98 Out of stock Compare Quick view Michigan Motorsports Michigan Motorsports Billet LS3 Rectangle Port Rocker Arm Stands (Pair) Replaces 12600936 for LS3 L99 L76 L77 L92 L96 L94 LY6 L9H LSA 6.0L 6.2L Michigan Motorsports Billet Rocker Stands for Rectangle Port LS Heads Fits 2007–Later Rectangle Port 6.0L & 6.2L LS Engines – Casting #821, #823, #5364 The Michigan Motorsports Billet Rocker Stands are engineered to deliver... MSRP: Now: $99.99 Add to Cart Compare Quick view GM GM 12600936 LS3 Rocker Stands for 2007+ 6.0L 6.2L LS3 L99 L76 L77 L92 LY6 L94 L9H L96 Rectangle Port Pedestal Stand Pair Genuine GM 12600936 Rocker Arm Pedestal Stands Fits 2007–Later Rectangle Port 6.0L & 6.2L LS Engines – Casting #821, #823, #5364 The Genuine GM 12600936 Rocker Arm Pedestal Stands are factory-original replacements designed for... MSRP: Now: $109.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler 6.2 LS3 CNC Rectangle Port 257cc Cylinder Heads 6.2 LS3 L99 LSA LS9 L92 L9H L94 TSP Texas Speed Brawler LS3 257cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based Engines 6.2L LS3 L99 LSA LS9 L92 L9H L94 If you are looking for great factory style replacement/upgraded LS3-style cylinder head, look no further... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 As-Cast 257cc Rectangle Port Cylinder Heads 6.0L 6.2L LS3 L99 LSA LS9 L92 L76 L77 L96 LY6 TSP PRC LS3 As-Cast 257cc Rectangle Port LS Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.0L and 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 L96 L76 L77 LY6 These 100% USA-cast and machined Precision Race Components cylinder heads combine high... MSRP: Now: $2,299.99 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 CNC Ported Rectangle Port 260cc Cylinder Heads 6.2L LS3 L99 LSA LS9 L92 TSP PRC LS3 260cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 These 100% USA-cast and machined Precision Race Components cylinder heads feature 260cc fully CNC Ported intake... MSRP: Now: $2,949.99 Add to Cart Compare Quick view AFR AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR's 238cc LS3 Enforcer As-Cast Cylinder Heads offer proven performance in a budget-friendly package. Designed using AFR’s Permanent... MSRP: Now: $1,526.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 6-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 6-Bolt Cylinder Heads 260cc – Fully CNC Ported, 69cc Chambers, Assembled (Pair) In Stock, Ready to Ship! AFR's 260cc LS3 Mongoose cylinder heads feature 100% CNC ported intake runners, exhaust runners, and combustion chambers... MSRP: Now: $3,188.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 4-Bolt Cylinder Heads – 260cc CNC Ported | 69cc Chambers (Pair) Fully Assembled Rectangle Port LS3 Heads | High-Performance Street & Race Applications AFR’s 260cc LS3 Mongoose cylinder heads feature fully CNC-ported... MSRP: Now: $3,188.00 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) Frankenstein M311 Monster Series 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold In Stock, Ready To Ship! The Monster Series M311 273cc LS3 Cylinder Heads are... MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) Frankenstein M311 BOOST Monster 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold Frankenstein Engine Dynamics' Boost Monster Series M311 273cc LS3 Cylinder... MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair Trick Flow 255cc LS3 Cylinder Heads - 69CC Chamber Fits 4.000"+ Bore Rectangle Port LS Engines LS3 L99 L76 L77 LSA L92 L96 L94 L9H Sold as a Pair of 2 Assembled 4-Bolt Heads Trick Flow engineers combined the best features of factory GM LS3 and... MSRP: Now: $3,199.98 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair Trick Flow GenX 280cc LS3 Cylinder Heads 6-Bolt HIP Castings| 12 Degree | 67cc Chamber | 4.000"+ Bore Sold as a Pair of 2 Assembled Heads Building on the features that make the GenX® 255 for GM LS3 great—like 12° valve angles and... MSRP: Now: $3,999.98 Out of stock Compare Compare Selected × OK
Quick view Details AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) MSRP: Now: $3,188.00 Out of stock Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Details Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair MSRP: Now: $3,199.98 Add to Cart Compare Quick view Details Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair MSRP: Now: $3,999.98 Out of stock Compare Quick view Michigan Motorsports Michigan Motorsports Billet LS3 Rectangle Port Rocker Arm Stands (Pair) Replaces 12600936 for LS3 L99 L76 L77 L92 L96 L94 LY6 L9H LSA 6.0L 6.2L Michigan Motorsports Billet Rocker Stands for Rectangle Port LS Heads Fits 2007–Later Rectangle Port 6.0L & 6.2L LS Engines – Casting #821, #823, #5364 The Michigan Motorsports Billet Rocker Stands are engineered to deliver... MSRP: Now: $99.99 Add to Cart Compare Quick view GM GM 12600936 LS3 Rocker Stands for 2007+ 6.0L 6.2L LS3 L99 L76 L77 L92 LY6 L94 L9H L96 Rectangle Port Pedestal Stand Pair Genuine GM 12600936 Rocker Arm Pedestal Stands Fits 2007–Later Rectangle Port 6.0L & 6.2L LS Engines – Casting #821, #823, #5364 The Genuine GM 12600936 Rocker Arm Pedestal Stands are factory-original replacements designed for... MSRP: Now: $109.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler 6.2 LS3 CNC Rectangle Port 257cc Cylinder Heads 6.2 LS3 L99 LSA LS9 L92 L9H L94 TSP Texas Speed Brawler LS3 257cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based Engines 6.2L LS3 L99 LSA LS9 L92 L9H L94 If you are looking for great factory style replacement/upgraded LS3-style cylinder head, look no further... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 As-Cast 257cc Rectangle Port Cylinder Heads 6.0L 6.2L LS3 L99 LSA LS9 L92 L76 L77 L96 LY6 TSP PRC LS3 As-Cast 257cc Rectangle Port LS Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.0L and 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 L96 L76 L77 LY6 These 100% USA-cast and machined Precision Race Components cylinder heads combine high... MSRP: Now: $2,299.99 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 CNC Ported Rectangle Port 260cc Cylinder Heads 6.2L LS3 L99 LSA LS9 L92 TSP PRC LS3 260cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 These 100% USA-cast and machined Precision Race Components cylinder heads feature 260cc fully CNC Ported intake... MSRP: Now: $2,949.99 Add to Cart Compare Quick view AFR AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR's 238cc LS3 Enforcer As-Cast Cylinder Heads offer proven performance in a budget-friendly package. Designed using AFR’s Permanent... MSRP: Now: $1,526.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 6-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 6-Bolt Cylinder Heads 260cc – Fully CNC Ported, 69cc Chambers, Assembled (Pair) In Stock, Ready to Ship! AFR's 260cc LS3 Mongoose cylinder heads feature 100% CNC ported intake runners, exhaust runners, and combustion chambers... MSRP: Now: $3,188.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 4-Bolt Cylinder Heads – 260cc CNC Ported | 69cc Chambers (Pair) Fully Assembled Rectangle Port LS3 Heads | High-Performance Street & Race Applications AFR’s 260cc LS3 Mongoose cylinder heads feature fully CNC-ported... MSRP: Now: $3,188.00 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) Frankenstein M311 Monster Series 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold In Stock, Ready To Ship! The Monster Series M311 273cc LS3 Cylinder Heads are... MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) Frankenstein M311 BOOST Monster 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold Frankenstein Engine Dynamics' Boost Monster Series M311 273cc LS3 Cylinder... MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair Trick Flow 255cc LS3 Cylinder Heads - 69CC Chamber Fits 4.000"+ Bore Rectangle Port LS Engines LS3 L99 L76 L77 LSA L92 L96 L94 L9H Sold as a Pair of 2 Assembled 4-Bolt Heads Trick Flow engineers combined the best features of factory GM LS3 and... MSRP: Now: $3,199.98 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair Trick Flow GenX 280cc LS3 Cylinder Heads 6-Bolt HIP Castings| 12 Degree | 67cc Chamber | 4.000"+ Bore Sold as a Pair of 2 Assembled Heads Building on the features that make the GenX® 255 for GM LS3 great—like 12° valve angles and... MSRP: Now: $3,999.98 Out of stock Compare Compare Selected × OK
Quick view Details Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare
Quick view Details Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare
Quick view Details Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair MSRP: Now: $3,199.98 Add to Cart Compare Quick view Details Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair MSRP: Now: $3,999.98 Out of stock Compare Quick view Michigan Motorsports Michigan Motorsports Billet LS3 Rectangle Port Rocker Arm Stands (Pair) Replaces 12600936 for LS3 L99 L76 L77 L92 L96 L94 LY6 L9H LSA 6.0L 6.2L Michigan Motorsports Billet Rocker Stands for Rectangle Port LS Heads Fits 2007–Later Rectangle Port 6.0L & 6.2L LS Engines – Casting #821, #823, #5364 The Michigan Motorsports Billet Rocker Stands are engineered to deliver... MSRP: Now: $99.99 Add to Cart Compare Quick view GM GM 12600936 LS3 Rocker Stands for 2007+ 6.0L 6.2L LS3 L99 L76 L77 L92 LY6 L94 L9H L96 Rectangle Port Pedestal Stand Pair Genuine GM 12600936 Rocker Arm Pedestal Stands Fits 2007–Later Rectangle Port 6.0L & 6.2L LS Engines – Casting #821, #823, #5364 The Genuine GM 12600936 Rocker Arm Pedestal Stands are factory-original replacements designed for... MSRP: Now: $109.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler 6.2 LS3 CNC Rectangle Port 257cc Cylinder Heads 6.2 LS3 L99 LSA LS9 L92 L9H L94 TSP Texas Speed Brawler LS3 257cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based Engines 6.2L LS3 L99 LSA LS9 L92 L9H L94 If you are looking for great factory style replacement/upgraded LS3-style cylinder head, look no further... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 As-Cast 257cc Rectangle Port Cylinder Heads 6.0L 6.2L LS3 L99 LSA LS9 L92 L76 L77 L96 LY6 TSP PRC LS3 As-Cast 257cc Rectangle Port LS Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.0L and 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 L96 L76 L77 LY6 These 100% USA-cast and machined Precision Race Components cylinder heads combine high... MSRP: Now: $2,299.99 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 CNC Ported Rectangle Port 260cc Cylinder Heads 6.2L LS3 L99 LSA LS9 L92 TSP PRC LS3 260cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 These 100% USA-cast and machined Precision Race Components cylinder heads feature 260cc fully CNC Ported intake... MSRP: Now: $2,949.99 Add to Cart Compare Quick view AFR AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR's 238cc LS3 Enforcer As-Cast Cylinder Heads offer proven performance in a budget-friendly package. Designed using AFR’s Permanent... MSRP: Now: $1,526.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 6-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 6-Bolt Cylinder Heads 260cc – Fully CNC Ported, 69cc Chambers, Assembled (Pair) In Stock, Ready to Ship! AFR's 260cc LS3 Mongoose cylinder heads feature 100% CNC ported intake runners, exhaust runners, and combustion chambers... MSRP: Now: $3,188.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 4-Bolt Cylinder Heads – 260cc CNC Ported | 69cc Chambers (Pair) Fully Assembled Rectangle Port LS3 Heads | High-Performance Street & Race Applications AFR’s 260cc LS3 Mongoose cylinder heads feature fully CNC-ported... MSRP: Now: $3,188.00 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) Frankenstein M311 Monster Series 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold In Stock, Ready To Ship! The Monster Series M311 273cc LS3 Cylinder Heads are... MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) Frankenstein M311 BOOST Monster 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold Frankenstein Engine Dynamics' Boost Monster Series M311 273cc LS3 Cylinder... MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair Trick Flow 255cc LS3 Cylinder Heads - 69CC Chamber Fits 4.000"+ Bore Rectangle Port LS Engines LS3 L99 L76 L77 LSA L92 L96 L94 L9H Sold as a Pair of 2 Assembled 4-Bolt Heads Trick Flow engineers combined the best features of factory GM LS3 and... MSRP: Now: $3,199.98 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair Trick Flow GenX 280cc LS3 Cylinder Heads 6-Bolt HIP Castings| 12 Degree | 67cc Chamber | 4.000"+ Bore Sold as a Pair of 2 Assembled Heads Building on the features that make the GenX® 255 for GM LS3 great—like 12° valve angles and... MSRP: Now: $3,999.98 Out of stock Compare Compare Selected × OK
Quick view Details Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair MSRP: Now: $3,999.98 Out of stock Compare Quick view Michigan Motorsports Michigan Motorsports Billet LS3 Rectangle Port Rocker Arm Stands (Pair) Replaces 12600936 for LS3 L99 L76 L77 L92 L96 L94 LY6 L9H LSA 6.0L 6.2L Michigan Motorsports Billet Rocker Stands for Rectangle Port LS Heads Fits 2007–Later Rectangle Port 6.0L & 6.2L LS Engines – Casting #821, #823, #5364 The Michigan Motorsports Billet Rocker Stands are engineered to deliver... MSRP: Now: $99.99 Add to Cart Compare Quick view GM GM 12600936 LS3 Rocker Stands for 2007+ 6.0L 6.2L LS3 L99 L76 L77 L92 LY6 L94 L9H L96 Rectangle Port Pedestal Stand Pair Genuine GM 12600936 Rocker Arm Pedestal Stands Fits 2007–Later Rectangle Port 6.0L & 6.2L LS Engines – Casting #821, #823, #5364 The Genuine GM 12600936 Rocker Arm Pedestal Stands are factory-original replacements designed for... MSRP: Now: $109.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler 6.2 LS3 CNC Rectangle Port 257cc Cylinder Heads 6.2 LS3 L99 LSA LS9 L92 L9H L94 TSP Texas Speed Brawler LS3 257cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based Engines 6.2L LS3 L99 LSA LS9 L92 L9H L94 If you are looking for great factory style replacement/upgraded LS3-style cylinder head, look no further... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 As-Cast 257cc Rectangle Port Cylinder Heads 6.0L 6.2L LS3 L99 LSA LS9 L92 L76 L77 L96 LY6 TSP PRC LS3 As-Cast 257cc Rectangle Port LS Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.0L and 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 L96 L76 L77 LY6 These 100% USA-cast and machined Precision Race Components cylinder heads combine high... MSRP: Now: $2,299.99 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 CNC Ported Rectangle Port 260cc Cylinder Heads 6.2L LS3 L99 LSA LS9 L92 TSP PRC LS3 260cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 These 100% USA-cast and machined Precision Race Components cylinder heads feature 260cc fully CNC Ported intake... MSRP: Now: $2,949.99 Add to Cart Compare Quick view AFR AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR's 238cc LS3 Enforcer As-Cast Cylinder Heads offer proven performance in a budget-friendly package. Designed using AFR’s Permanent... MSRP: Now: $1,526.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 6-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 6-Bolt Cylinder Heads 260cc – Fully CNC Ported, 69cc Chambers, Assembled (Pair) In Stock, Ready to Ship! AFR's 260cc LS3 Mongoose cylinder heads feature 100% CNC ported intake runners, exhaust runners, and combustion chambers... MSRP: Now: $3,188.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 4-Bolt Cylinder Heads – 260cc CNC Ported | 69cc Chambers (Pair) Fully Assembled Rectangle Port LS3 Heads | High-Performance Street & Race Applications AFR’s 260cc LS3 Mongoose cylinder heads feature fully CNC-ported... MSRP: Now: $3,188.00 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) Frankenstein M311 Monster Series 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold In Stock, Ready To Ship! The Monster Series M311 273cc LS3 Cylinder Heads are... MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) Frankenstein M311 BOOST Monster 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold Frankenstein Engine Dynamics' Boost Monster Series M311 273cc LS3 Cylinder... MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair Trick Flow 255cc LS3 Cylinder Heads - 69CC Chamber Fits 4.000"+ Bore Rectangle Port LS Engines LS3 L99 L76 L77 LSA L92 L96 L94 L9H Sold as a Pair of 2 Assembled 4-Bolt Heads Trick Flow engineers combined the best features of factory GM LS3 and... MSRP: Now: $3,199.98 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair Trick Flow GenX 280cc LS3 Cylinder Heads 6-Bolt HIP Castings| 12 Degree | 67cc Chamber | 4.000"+ Bore Sold as a Pair of 2 Assembled Heads Building on the features that make the GenX® 255 for GM LS3 great—like 12° valve angles and... MSRP: Now: $3,999.98 Out of stock Compare Compare Selected × OK
Quick view Michigan Motorsports Michigan Motorsports Billet LS3 Rectangle Port Rocker Arm Stands (Pair) Replaces 12600936 for LS3 L99 L76 L77 L92 L96 L94 LY6 L9H LSA 6.0L 6.2L Michigan Motorsports Billet Rocker Stands for Rectangle Port LS Heads Fits 2007–Later Rectangle Port 6.0L & 6.2L LS Engines – Casting #821, #823, #5364 The Michigan Motorsports Billet Rocker Stands are engineered to deliver... MSRP: Now: $99.99 Add to Cart Compare Quick view GM GM 12600936 LS3 Rocker Stands for 2007+ 6.0L 6.2L LS3 L99 L76 L77 L92 LY6 L94 L9H L96 Rectangle Port Pedestal Stand Pair Genuine GM 12600936 Rocker Arm Pedestal Stands Fits 2007–Later Rectangle Port 6.0L & 6.2L LS Engines – Casting #821, #823, #5364 The Genuine GM 12600936 Rocker Arm Pedestal Stands are factory-original replacements designed for... MSRP: Now: $109.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler 6.2 LS3 CNC Rectangle Port 257cc Cylinder Heads 6.2 LS3 L99 LSA LS9 L92 L9H L94 TSP Texas Speed Brawler LS3 257cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based Engines 6.2L LS3 L99 LSA LS9 L92 L9H L94 If you are looking for great factory style replacement/upgraded LS3-style cylinder head, look no further... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 As-Cast 257cc Rectangle Port Cylinder Heads 6.0L 6.2L LS3 L99 LSA LS9 L92 L76 L77 L96 LY6 TSP PRC LS3 As-Cast 257cc Rectangle Port LS Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.0L and 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 L96 L76 L77 LY6 These 100% USA-cast and machined Precision Race Components cylinder heads combine high... MSRP: Now: $2,299.99 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 CNC Ported Rectangle Port 260cc Cylinder Heads 6.2L LS3 L99 LSA LS9 L92 TSP PRC LS3 260cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 These 100% USA-cast and machined Precision Race Components cylinder heads feature 260cc fully CNC Ported intake... MSRP: Now: $2,949.99 Add to Cart Compare Quick view AFR AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR's 238cc LS3 Enforcer As-Cast Cylinder Heads offer proven performance in a budget-friendly package. Designed using AFR’s Permanent... MSRP: Now: $1,526.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 6-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 6-Bolt Cylinder Heads 260cc – Fully CNC Ported, 69cc Chambers, Assembled (Pair) In Stock, Ready to Ship! AFR's 260cc LS3 Mongoose cylinder heads feature 100% CNC ported intake runners, exhaust runners, and combustion chambers... MSRP: Now: $3,188.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 4-Bolt Cylinder Heads – 260cc CNC Ported | 69cc Chambers (Pair) Fully Assembled Rectangle Port LS3 Heads | High-Performance Street & Race Applications AFR’s 260cc LS3 Mongoose cylinder heads feature fully CNC-ported... MSRP: Now: $3,188.00 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) Frankenstein M311 Monster Series 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold In Stock, Ready To Ship! The Monster Series M311 273cc LS3 Cylinder Heads are... MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) Frankenstein M311 BOOST Monster 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold Frankenstein Engine Dynamics' Boost Monster Series M311 273cc LS3 Cylinder... MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair Trick Flow 255cc LS3 Cylinder Heads - 69CC Chamber Fits 4.000"+ Bore Rectangle Port LS Engines LS3 L99 L76 L77 LSA L92 L96 L94 L9H Sold as a Pair of 2 Assembled 4-Bolt Heads Trick Flow engineers combined the best features of factory GM LS3 and... MSRP: Now: $3,199.98 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair Trick Flow GenX 280cc LS3 Cylinder Heads 6-Bolt HIP Castings| 12 Degree | 67cc Chamber | 4.000"+ Bore Sold as a Pair of 2 Assembled Heads Building on the features that make the GenX® 255 for GM LS3 great—like 12° valve angles and... MSRP: Now: $3,999.98 Out of stock Compare Compare Selected × OK
Quick view GM GM 12600936 LS3 Rocker Stands for 2007+ 6.0L 6.2L LS3 L99 L76 L77 L92 LY6 L94 L9H L96 Rectangle Port Pedestal Stand Pair Genuine GM 12600936 Rocker Arm Pedestal Stands Fits 2007–Later Rectangle Port 6.0L & 6.2L LS Engines – Casting #821, #823, #5364 The Genuine GM 12600936 Rocker Arm Pedestal Stands are factory-original replacements designed for... MSRP: Now: $109.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed Brawler 6.2 LS3 CNC Rectangle Port 257cc Cylinder Heads 6.2 LS3 L99 LSA LS9 L92 L9H L94 TSP Texas Speed Brawler LS3 257cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based Engines 6.2L LS3 L99 LSA LS9 L92 L9H L94 If you are looking for great factory style replacement/upgraded LS3-style cylinder head, look no further... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 As-Cast 257cc Rectangle Port Cylinder Heads 6.0L 6.2L LS3 L99 LSA LS9 L92 L76 L77 L96 LY6 TSP PRC LS3 As-Cast 257cc Rectangle Port LS Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.0L and 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 L96 L76 L77 LY6 These 100% USA-cast and machined Precision Race Components cylinder heads combine high... MSRP: Now: $2,299.99 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 CNC Ported Rectangle Port 260cc Cylinder Heads 6.2L LS3 L99 LSA LS9 L92 TSP PRC LS3 260cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 These 100% USA-cast and machined Precision Race Components cylinder heads feature 260cc fully CNC Ported intake... MSRP: Now: $2,949.99 Add to Cart Compare Quick view AFR AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR's 238cc LS3 Enforcer As-Cast Cylinder Heads offer proven performance in a budget-friendly package. Designed using AFR’s Permanent... MSRP: Now: $1,526.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 6-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 6-Bolt Cylinder Heads 260cc – Fully CNC Ported, 69cc Chambers, Assembled (Pair) In Stock, Ready to Ship! AFR's 260cc LS3 Mongoose cylinder heads feature 100% CNC ported intake runners, exhaust runners, and combustion chambers... MSRP: Now: $3,188.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 4-Bolt Cylinder Heads – 260cc CNC Ported | 69cc Chambers (Pair) Fully Assembled Rectangle Port LS3 Heads | High-Performance Street & Race Applications AFR’s 260cc LS3 Mongoose cylinder heads feature fully CNC-ported... MSRP: Now: $3,188.00 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) Frankenstein M311 Monster Series 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold In Stock, Ready To Ship! The Monster Series M311 273cc LS3 Cylinder Heads are... MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) Frankenstein M311 BOOST Monster 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold Frankenstein Engine Dynamics' Boost Monster Series M311 273cc LS3 Cylinder... MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair Trick Flow 255cc LS3 Cylinder Heads - 69CC Chamber Fits 4.000"+ Bore Rectangle Port LS Engines LS3 L99 L76 L77 LSA L92 L96 L94 L9H Sold as a Pair of 2 Assembled 4-Bolt Heads Trick Flow engineers combined the best features of factory GM LS3 and... MSRP: Now: $3,199.98 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair Trick Flow GenX 280cc LS3 Cylinder Heads 6-Bolt HIP Castings| 12 Degree | 67cc Chamber | 4.000"+ Bore Sold as a Pair of 2 Assembled Heads Building on the features that make the GenX® 255 for GM LS3 great—like 12° valve angles and... MSRP: Now: $3,999.98 Out of stock Compare Compare Selected × OK
Quick view PRC Precision Race Components Texas Speed Brawler 6.2 LS3 CNC Rectangle Port 257cc Cylinder Heads 6.2 LS3 L99 LSA LS9 L92 L9H L94 TSP Texas Speed Brawler LS3 257cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based Engines 6.2L LS3 L99 LSA LS9 L92 L9H L94 If you are looking for great factory style replacement/upgraded LS3-style cylinder head, look no further... MSRP: Now: $1,999.99 Add to Cart Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 As-Cast 257cc Rectangle Port Cylinder Heads 6.0L 6.2L LS3 L99 LSA LS9 L92 L76 L77 L96 LY6 TSP PRC LS3 As-Cast 257cc Rectangle Port LS Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.0L and 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 L96 L76 L77 LY6 These 100% USA-cast and machined Precision Race Components cylinder heads combine high... MSRP: Now: $2,299.99 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 CNC Ported Rectangle Port 260cc Cylinder Heads 6.2L LS3 L99 LSA LS9 L92 TSP PRC LS3 260cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 These 100% USA-cast and machined Precision Race Components cylinder heads feature 260cc fully CNC Ported intake... MSRP: Now: $2,949.99 Add to Cart Compare Quick view AFR AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR's 238cc LS3 Enforcer As-Cast Cylinder Heads offer proven performance in a budget-friendly package. Designed using AFR’s Permanent... MSRP: Now: $1,526.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 6-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 6-Bolt Cylinder Heads 260cc – Fully CNC Ported, 69cc Chambers, Assembled (Pair) In Stock, Ready to Ship! AFR's 260cc LS3 Mongoose cylinder heads feature 100% CNC ported intake runners, exhaust runners, and combustion chambers... MSRP: Now: $3,188.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 4-Bolt Cylinder Heads – 260cc CNC Ported | 69cc Chambers (Pair) Fully Assembled Rectangle Port LS3 Heads | High-Performance Street & Race Applications AFR’s 260cc LS3 Mongoose cylinder heads feature fully CNC-ported... MSRP: Now: $3,188.00 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) Frankenstein M311 Monster Series 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold In Stock, Ready To Ship! The Monster Series M311 273cc LS3 Cylinder Heads are... MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) Frankenstein M311 BOOST Monster 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold Frankenstein Engine Dynamics' Boost Monster Series M311 273cc LS3 Cylinder... MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair Trick Flow 255cc LS3 Cylinder Heads - 69CC Chamber Fits 4.000"+ Bore Rectangle Port LS Engines LS3 L99 L76 L77 LSA L92 L96 L94 L9H Sold as a Pair of 2 Assembled 4-Bolt Heads Trick Flow engineers combined the best features of factory GM LS3 and... MSRP: Now: $3,199.98 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair Trick Flow GenX 280cc LS3 Cylinder Heads 6-Bolt HIP Castings| 12 Degree | 67cc Chamber | 4.000"+ Bore Sold as a Pair of 2 Assembled Heads Building on the features that make the GenX® 255 for GM LS3 great—like 12° valve angles and... MSRP: Now: $3,999.98 Out of stock Compare Compare Selected × OK
Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 As-Cast 257cc Rectangle Port Cylinder Heads 6.0L 6.2L LS3 L99 LSA LS9 L92 L76 L77 L96 LY6 TSP PRC LS3 As-Cast 257cc Rectangle Port LS Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.0L and 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 L96 L76 L77 LY6 These 100% USA-cast and machined Precision Race Components cylinder heads combine high... MSRP: Now: $2,299.99 Out of stock Compare Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 CNC Ported Rectangle Port 260cc Cylinder Heads 6.2L LS3 L99 LSA LS9 L92 TSP PRC LS3 260cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 These 100% USA-cast and machined Precision Race Components cylinder heads feature 260cc fully CNC Ported intake... MSRP: Now: $2,949.99 Add to Cart Compare Quick view AFR AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR's 238cc LS3 Enforcer As-Cast Cylinder Heads offer proven performance in a budget-friendly package. Designed using AFR’s Permanent... MSRP: Now: $1,526.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 6-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 6-Bolt Cylinder Heads 260cc – Fully CNC Ported, 69cc Chambers, Assembled (Pair) In Stock, Ready to Ship! AFR's 260cc LS3 Mongoose cylinder heads feature 100% CNC ported intake runners, exhaust runners, and combustion chambers... MSRP: Now: $3,188.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 4-Bolt Cylinder Heads – 260cc CNC Ported | 69cc Chambers (Pair) Fully Assembled Rectangle Port LS3 Heads | High-Performance Street & Race Applications AFR’s 260cc LS3 Mongoose cylinder heads feature fully CNC-ported... MSRP: Now: $3,188.00 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) Frankenstein M311 Monster Series 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold In Stock, Ready To Ship! The Monster Series M311 273cc LS3 Cylinder Heads are... MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) Frankenstein M311 BOOST Monster 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold Frankenstein Engine Dynamics' Boost Monster Series M311 273cc LS3 Cylinder... MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair Trick Flow 255cc LS3 Cylinder Heads - 69CC Chamber Fits 4.000"+ Bore Rectangle Port LS Engines LS3 L99 L76 L77 LSA L92 L96 L94 L9H Sold as a Pair of 2 Assembled 4-Bolt Heads Trick Flow engineers combined the best features of factory GM LS3 and... MSRP: Now: $3,199.98 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair Trick Flow GenX 280cc LS3 Cylinder Heads 6-Bolt HIP Castings| 12 Degree | 67cc Chamber | 4.000"+ Bore Sold as a Pair of 2 Assembled Heads Building on the features that make the GenX® 255 for GM LS3 great—like 12° valve angles and... MSRP: Now: $3,999.98 Out of stock Compare Compare Selected × OK
Quick view PRC Precision Race Components Texas Speed PRC 6.2 LS3 CNC Ported Rectangle Port 260cc Cylinder Heads 6.2L LS3 L99 LSA LS9 L92 TSP PRC LS3 260cc CNC Rectangle Port Cylinder Heads Fits 2007-Newer Rectangle Port LS-Based 6.2L Engines LS3 L99 LSA LS9 L92 L9H L94 These 100% USA-cast and machined Precision Race Components cylinder heads feature 260cc fully CNC Ported intake... MSRP: Now: $2,949.99 Add to Cart Compare Quick view AFR AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR's 238cc LS3 Enforcer As-Cast Cylinder Heads offer proven performance in a budget-friendly package. Designed using AFR’s Permanent... MSRP: Now: $1,526.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 6-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 6-Bolt Cylinder Heads 260cc – Fully CNC Ported, 69cc Chambers, Assembled (Pair) In Stock, Ready to Ship! AFR's 260cc LS3 Mongoose cylinder heads feature 100% CNC ported intake runners, exhaust runners, and combustion chambers... MSRP: Now: $3,188.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 4-Bolt Cylinder Heads – 260cc CNC Ported | 69cc Chambers (Pair) Fully Assembled Rectangle Port LS3 Heads | High-Performance Street & Race Applications AFR’s 260cc LS3 Mongoose cylinder heads feature fully CNC-ported... MSRP: Now: $3,188.00 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) Frankenstein M311 Monster Series 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold In Stock, Ready To Ship! The Monster Series M311 273cc LS3 Cylinder Heads are... MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) Frankenstein M311 BOOST Monster 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold Frankenstein Engine Dynamics' Boost Monster Series M311 273cc LS3 Cylinder... MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair Trick Flow 255cc LS3 Cylinder Heads - 69CC Chamber Fits 4.000"+ Bore Rectangle Port LS Engines LS3 L99 L76 L77 LSA L92 L96 L94 L9H Sold as a Pair of 2 Assembled 4-Bolt Heads Trick Flow engineers combined the best features of factory GM LS3 and... MSRP: Now: $3,199.98 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair Trick Flow GenX 280cc LS3 Cylinder Heads 6-Bolt HIP Castings| 12 Degree | 67cc Chamber | 4.000"+ Bore Sold as a Pair of 2 Assembled Heads Building on the features that make the GenX® 255 for GM LS3 great—like 12° valve angles and... MSRP: Now: $3,999.98 Out of stock Compare Compare Selected × OK
Quick view AFR AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR 238cc LS3 Enforcer As-Cast Cylinder Heads 72cc – 6.2L LS3 – Assembled (Pair) AFR's 238cc LS3 Enforcer As-Cast Cylinder Heads offer proven performance in a budget-friendly package. Designed using AFR’s Permanent... MSRP: Now: $1,526.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 6-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 6-Bolt Cylinder Heads 260cc – Fully CNC Ported, 69cc Chambers, Assembled (Pair) In Stock, Ready to Ship! AFR's 260cc LS3 Mongoose cylinder heads feature 100% CNC ported intake runners, exhaust runners, and combustion chambers... MSRP: Now: $3,188.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 4-Bolt Cylinder Heads – 260cc CNC Ported | 69cc Chambers (Pair) Fully Assembled Rectangle Port LS3 Heads | High-Performance Street & Race Applications AFR’s 260cc LS3 Mongoose cylinder heads feature fully CNC-ported... MSRP: Now: $3,188.00 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) Frankenstein M311 Monster Series 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold In Stock, Ready To Ship! The Monster Series M311 273cc LS3 Cylinder Heads are... MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) Frankenstein M311 BOOST Monster 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold Frankenstein Engine Dynamics' Boost Monster Series M311 273cc LS3 Cylinder... MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair Trick Flow 255cc LS3 Cylinder Heads - 69CC Chamber Fits 4.000"+ Bore Rectangle Port LS Engines LS3 L99 L76 L77 LSA L92 L96 L94 L9H Sold as a Pair of 2 Assembled 4-Bolt Heads Trick Flow engineers combined the best features of factory GM LS3 and... MSRP: Now: $3,199.98 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair Trick Flow GenX 280cc LS3 Cylinder Heads 6-Bolt HIP Castings| 12 Degree | 67cc Chamber | 4.000"+ Bore Sold as a Pair of 2 Assembled Heads Building on the features that make the GenX® 255 for GM LS3 great—like 12° valve angles and... MSRP: Now: $3,999.98 Out of stock Compare Compare Selected × OK
Quick view AFR AFR 12° LS3 Rectangle Port 6-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 6-Bolt Cylinder Heads 260cc – Fully CNC Ported, 69cc Chambers, Assembled (Pair) In Stock, Ready to Ship! AFR's 260cc LS3 Mongoose cylinder heads feature 100% CNC ported intake runners, exhaust runners, and combustion chambers... MSRP: Now: $3,188.00 Add to Cart Compare Quick view AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 4-Bolt Cylinder Heads – 260cc CNC Ported | 69cc Chambers (Pair) Fully Assembled Rectangle Port LS3 Heads | High-Performance Street & Race Applications AFR’s 260cc LS3 Mongoose cylinder heads feature fully CNC-ported... MSRP: Now: $3,188.00 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) Frankenstein M311 Monster Series 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold In Stock, Ready To Ship! The Monster Series M311 273cc LS3 Cylinder Heads are... MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) Frankenstein M311 BOOST Monster 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold Frankenstein Engine Dynamics' Boost Monster Series M311 273cc LS3 Cylinder... MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair Trick Flow 255cc LS3 Cylinder Heads - 69CC Chamber Fits 4.000"+ Bore Rectangle Port LS Engines LS3 L99 L76 L77 LSA L92 L96 L94 L9H Sold as a Pair of 2 Assembled 4-Bolt Heads Trick Flow engineers combined the best features of factory GM LS3 and... MSRP: Now: $3,199.98 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair Trick Flow GenX 280cc LS3 Cylinder Heads 6-Bolt HIP Castings| 12 Degree | 67cc Chamber | 4.000"+ Bore Sold as a Pair of 2 Assembled Heads Building on the features that make the GenX® 255 for GM LS3 great—like 12° valve angles and... MSRP: Now: $3,999.98 Out of stock Compare Compare Selected × OK
Quick view AFR AFR 12° LS3 Rectangle Port 4-Bolt Mongoose 260cc Cylinder Heads – Fully CNC Ported, 69cc Chambers, Assembled (Pair) AFR 12° LS3 4-Bolt Cylinder Heads – 260cc CNC Ported | 69cc Chambers (Pair) Fully Assembled Rectangle Port LS3 Heads | High-Performance Street & Race Applications AFR’s 260cc LS3 Mongoose cylinder heads feature fully CNC-ported... MSRP: Now: $3,188.00 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) Frankenstein M311 Monster Series 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold In Stock, Ready To Ship! The Monster Series M311 273cc LS3 Cylinder Heads are... MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) Frankenstein M311 BOOST Monster 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold Frankenstein Engine Dynamics' Boost Monster Series M311 273cc LS3 Cylinder... MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare Quick view Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair Trick Flow 255cc LS3 Cylinder Heads - 69CC Chamber Fits 4.000"+ Bore Rectangle Port LS Engines LS3 L99 L76 L77 LSA L92 L96 L94 L9H Sold as a Pair of 2 Assembled 4-Bolt Heads Trick Flow engineers combined the best features of factory GM LS3 and... MSRP: Now: $3,199.98 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair Trick Flow GenX 280cc LS3 Cylinder Heads 6-Bolt HIP Castings| 12 Degree | 67cc Chamber | 4.000"+ Bore Sold as a Pair of 2 Assembled Heads Building on the features that make the GenX® 255 for GM LS3 great—like 12° valve angles and... MSRP: Now: $3,999.98 Out of stock Compare Compare Selected × OK
Quick view Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) Frankenstein M311 Monster Series 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold In Stock, Ready To Ship! The Monster Series M311 273cc LS3 Cylinder Heads are... MSRP: Was: Now: $3,333.00 - $3,478.00 Choose Options Compare
Quick view Frankenstein Engine Dynamics Frankenstein M311 273cc Boost Monster 11 Degree LS3 Cylinder Heads with Inconel Exhaust Valves and Upgraded Guides (SET) Frankenstein M311 BOOST Monster 11 Degree LS3 Cylinder Head Pair Fits 4.000" and Larger Bore LS Engines when used with a Rectangle Port (LS3) Style Intake Manifold Frankenstein Engine Dynamics' Boost Monster Series M311 273cc LS3 Cylinder... MSRP: Was: Now: $3,999.00 - $4,144.00 Out of stock Compare
Quick view Trick Flow Specialties Trick Flow 255cc LS3 Cylinder Heads | 4 Bolt | 69cc Chamber | 4.000"+ Bore | Assembled Pair Trick Flow 255cc LS3 Cylinder Heads - 69CC Chamber Fits 4.000"+ Bore Rectangle Port LS Engines LS3 L99 L76 L77 LSA L92 L96 L94 L9H Sold as a Pair of 2 Assembled 4-Bolt Heads Trick Flow engineers combined the best features of factory GM LS3 and... MSRP: Now: $3,199.98 Add to Cart Compare Quick view Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair Trick Flow GenX 280cc LS3 Cylinder Heads 6-Bolt HIP Castings| 12 Degree | 67cc Chamber | 4.000"+ Bore Sold as a Pair of 2 Assembled Heads Building on the features that make the GenX® 255 for GM LS3 great—like 12° valve angles and... MSRP: Now: $3,999.98 Out of stock Compare Compare Selected
Quick view Trick Flow Specialties Trick Flow 280cc LS3 Cylinder Heads | 6 Bolt HIP Casting | 12 Degree | 67cc Chamber | 4.000"+ Bore| Assembled Pair Trick Flow GenX 280cc LS3 Cylinder Heads 6-Bolt HIP Castings| 12 Degree | 67cc Chamber | 4.000"+ Bore Sold as a Pair of 2 Assembled Heads Building on the features that make the GenX® 255 for GM LS3 great—like 12° valve angles and... MSRP: Now: $3,999.98 Out of stock Compare Compare Selected
