Quick view Details Frankenstein Engine Dynamics Frankenstein Billet Aluminum Rocker Stands for M311 Heads - Black Anodized MSRP: Now: $145.00 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Black Anodized - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 MSRP: Now: $249.96 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Machined Finish - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 MSRP: Now: $249.96 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray - Machined Finish - LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG MSRP: Now: $249.96 Out of stock Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray -Black Anodized- LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG MSRP: Now: $249.96 Out of stock Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M115 225cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 MSRP: Now: $3,300.00 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 MSRP: Now: $3,300.00 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) MSRP: Now: $4,200.00 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) MSRP: Was: Now: $3,600.00 - $3,745.00 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: $4,200.00 - $4,345.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein Billet Aluminum Rocker Stands for M311 Heads - Black Anodized Frankenstein Engine Dynamics Billet Rocker Stand for M311 Heads For MSRP: Now: $145.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Black Anodized - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 Frankenstein Engine Dynamics Gen 3 LS Billet Valley Cover Fits 1997-2006 Gen 3 LS-Based Engines 4.8L 5.3L 5.7L 6.0L< MSRP: Now: $249.96 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Machined Finish - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 Frankenstein Engine Dynamics Gen 3 LS Billet Valley Cover Fits 1997-2006 Gen 3 LS- MSRP: Now: $249.96 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray - Machined Finish - LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engi MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray -Black Anodized- LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engines 4.8L 5.3L 6.0L 6.2L 7.0L MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 225cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 225cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) MSRP: Now: $4,200.00 Add to Cart 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 MSRP: Was: Now: $3,600.00 - $3,745.00 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 wi MSRP: Was: Now: $4,200.00 - $4,345.00 Choose Options Compare Compare Selected × OK
Quick view Details Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Black Anodized - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 MSRP: Now: $249.96 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Machined Finish - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 MSRP: Now: $249.96 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray - Machined Finish - LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG MSRP: Now: $249.96 Out of stock Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray -Black Anodized- LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG MSRP: Now: $249.96 Out of stock Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M115 225cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 MSRP: Now: $3,300.00 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 MSRP: Now: $3,300.00 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) MSRP: Now: $4,200.00 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) MSRP: Was: Now: $3,600.00 - $3,745.00 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: $4,200.00 - $4,345.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein Billet Aluminum Rocker Stands for M311 Heads - Black Anodized Frankenstein Engine Dynamics Billet Rocker Stand for M311 Heads For MSRP: Now: $145.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Black Anodized - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 Frankenstein Engine Dynamics Gen 3 LS Billet Valley Cover Fits 1997-2006 Gen 3 LS-Based Engines 4.8L 5.3L 5.7L 6.0L< MSRP: Now: $249.96 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Machined Finish - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 Frankenstein Engine Dynamics Gen 3 LS Billet Valley Cover Fits 1997-2006 Gen 3 LS- MSRP: Now: $249.96 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray - Machined Finish - LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engi MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray -Black Anodized- LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engines 4.8L 5.3L 6.0L 6.2L 7.0L MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 225cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 225cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) MSRP: Now: $4,200.00 Add to Cart 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 MSRP: Was: Now: $3,600.00 - $3,745.00 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 wi MSRP: Was: Now: $4,200.00 - $4,345.00 Choose Options Compare Compare Selected × OK
Quick view Details Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Machined Finish - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 MSRP: Now: $249.96 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray - Machined Finish - LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG MSRP: Now: $249.96 Out of stock Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray -Black Anodized- LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG MSRP: Now: $249.96 Out of stock Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M115 225cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 MSRP: Now: $3,300.00 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 MSRP: Now: $3,300.00 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) MSRP: Now: $4,200.00 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) MSRP: Was: Now: $3,600.00 - $3,745.00 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: $4,200.00 - $4,345.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein Billet Aluminum Rocker Stands for M311 Heads - Black Anodized Frankenstein Engine Dynamics Billet Rocker Stand for M311 Heads For MSRP: Now: $145.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Black Anodized - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 Frankenstein Engine Dynamics Gen 3 LS Billet Valley Cover Fits 1997-2006 Gen 3 LS-Based Engines 4.8L 5.3L 5.7L 6.0L< MSRP: Now: $249.96 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Machined Finish - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 Frankenstein Engine Dynamics Gen 3 LS Billet Valley Cover Fits 1997-2006 Gen 3 LS- MSRP: Now: $249.96 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray - Machined Finish - LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engi MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray -Black Anodized- LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engines 4.8L 5.3L 6.0L 6.2L 7.0L MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 225cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 225cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) MSRP: Now: $4,200.00 Add to Cart 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 MSRP: Was: Now: $3,600.00 - $3,745.00 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 wi MSRP: Was: Now: $4,200.00 - $4,345.00 Choose Options Compare Compare Selected × OK
Quick view Details Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray - Machined Finish - LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG MSRP: Now: $249.96 Out of stock Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray -Black Anodized- LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG MSRP: Now: $249.96 Out of stock Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M115 225cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 MSRP: Now: $3,300.00 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 MSRP: Now: $3,300.00 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) MSRP: Now: $4,200.00 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) MSRP: Was: Now: $3,600.00 - $3,745.00 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: $4,200.00 - $4,345.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein Billet Aluminum Rocker Stands for M311 Heads - Black Anodized Frankenstein Engine Dynamics Billet Rocker Stand for M311 Heads For MSRP: Now: $145.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Black Anodized - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 Frankenstein Engine Dynamics Gen 3 LS Billet Valley Cover Fits 1997-2006 Gen 3 LS-Based Engines 4.8L 5.3L 5.7L 6.0L< MSRP: Now: $249.96 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Machined Finish - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 Frankenstein Engine Dynamics Gen 3 LS Billet Valley Cover Fits 1997-2006 Gen 3 LS- MSRP: Now: $249.96 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray - Machined Finish - LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engi MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray -Black Anodized- LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engines 4.8L 5.3L 6.0L 6.2L 7.0L MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 225cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 225cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) MSRP: Now: $4,200.00 Add to Cart 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 MSRP: Was: Now: $3,600.00 - $3,745.00 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 wi MSRP: Was: Now: $4,200.00 - $4,345.00 Choose Options Compare Compare Selected × OK
Quick view Details Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray -Black Anodized- LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG MSRP: Now: $249.96 Out of stock Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M115 225cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 MSRP: Now: $3,300.00 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 MSRP: Now: $3,300.00 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) MSRP: Now: $4,200.00 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) MSRP: Was: Now: $3,600.00 - $3,745.00 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: $4,200.00 - $4,345.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein Billet Aluminum Rocker Stands for M311 Heads - Black Anodized Frankenstein Engine Dynamics Billet Rocker Stand for M311 Heads For MSRP: Now: $145.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Black Anodized - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 Frankenstein Engine Dynamics Gen 3 LS Billet Valley Cover Fits 1997-2006 Gen 3 LS-Based Engines 4.8L 5.3L 5.7L 6.0L< MSRP: Now: $249.96 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Machined Finish - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 Frankenstein Engine Dynamics Gen 3 LS Billet Valley Cover Fits 1997-2006 Gen 3 LS- MSRP: Now: $249.96 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray - Machined Finish - LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engi MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray -Black Anodized- LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engines 4.8L 5.3L 6.0L 6.2L 7.0L MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 225cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 225cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) MSRP: Now: $4,200.00 Add to Cart 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 MSRP: Was: Now: $3,600.00 - $3,745.00 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 wi MSRP: Was: Now: $4,200.00 - $4,345.00 Choose Options Compare Compare Selected × OK
Quick view Details Frankenstein Engine Dynamics Frankenstein M115 225cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 MSRP: Now: $3,300.00 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 MSRP: Now: $3,300.00 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) MSRP: Now: $4,200.00 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) MSRP: Was: Now: $3,600.00 - $3,745.00 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: $4,200.00 - $4,345.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein Billet Aluminum Rocker Stands for M311 Heads - Black Anodized Frankenstein Engine Dynamics Billet Rocker Stand for M311 Heads For MSRP: Now: $145.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Black Anodized - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 Frankenstein Engine Dynamics Gen 3 LS Billet Valley Cover Fits 1997-2006 Gen 3 LS-Based Engines 4.8L 5.3L 5.7L 6.0L< MSRP: Now: $249.96 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Machined Finish - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 Frankenstein Engine Dynamics Gen 3 LS Billet Valley Cover Fits 1997-2006 Gen 3 LS- MSRP: Now: $249.96 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray - Machined Finish - LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engi MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray -Black Anodized- LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engines 4.8L 5.3L 6.0L 6.2L 7.0L MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 225cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 225cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) MSRP: Now: $4,200.00 Add to Cart 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 MSRP: Was: Now: $3,600.00 - $3,745.00 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 wi MSRP: Was: Now: $4,200.00 - $4,345.00 Choose Options Compare Compare Selected × OK
Quick view Details Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 MSRP: Now: $3,300.00 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) MSRP: Now: $4,200.00 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) MSRP: Was: Now: $3,600.00 - $3,745.00 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: $4,200.00 - $4,345.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein Billet Aluminum Rocker Stands for M311 Heads - Black Anodized Frankenstein Engine Dynamics Billet Rocker Stand for M311 Heads For MSRP: Now: $145.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Black Anodized - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 Frankenstein Engine Dynamics Gen 3 LS Billet Valley Cover Fits 1997-2006 Gen 3 LS-Based Engines 4.8L 5.3L 5.7L 6.0L< MSRP: Now: $249.96 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Machined Finish - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 Frankenstein Engine Dynamics Gen 3 LS Billet Valley Cover Fits 1997-2006 Gen 3 LS- MSRP: Now: $249.96 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray - Machined Finish - LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engi MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray -Black Anodized- LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engines 4.8L 5.3L 6.0L 6.2L 7.0L MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 225cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 225cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) MSRP: Now: $4,200.00 Add to Cart 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 MSRP: Was: Now: $3,600.00 - $3,745.00 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 wi MSRP: Was: Now: $4,200.00 - $4,345.00 Choose Options Compare Compare Selected × OK
Quick view Details Frankenstein Engine Dynamics Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) MSRP: Now: $4,200.00 Add to Cart Compare Quick view Details Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) MSRP: Was: Now: $3,600.00 - $3,745.00 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: $4,200.00 - $4,345.00 Choose Options Compare Quick view Frankenstein Engine Dynamics Frankenstein Billet Aluminum Rocker Stands for M311 Heads - Black Anodized Frankenstein Engine Dynamics Billet Rocker Stand for M311 Heads For MSRP: Now: $145.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Black Anodized - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 Frankenstein Engine Dynamics Gen 3 LS Billet Valley Cover Fits 1997-2006 Gen 3 LS-Based Engines 4.8L 5.3L 5.7L 6.0L< MSRP: Now: $249.96 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Machined Finish - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 Frankenstein Engine Dynamics Gen 3 LS Billet Valley Cover Fits 1997-2006 Gen 3 LS- MSRP: Now: $249.96 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray - Machined Finish - LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engi MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray -Black Anodized- LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engines 4.8L 5.3L 6.0L 6.2L 7.0L MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 225cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 225cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) MSRP: Now: $4,200.00 Add to Cart 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 MSRP: Was: Now: $3,600.00 - $3,745.00 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 wi MSRP: Was: Now: $4,200.00 - $4,345.00 Choose Options Compare Compare Selected × OK
Quick view Details Frankenstein Engine Dynamics Frankenstein Monster Series M311 273cc 11 Degree LS3 Cylinder Heads (SET) MSRP: Was: Now: $3,600.00 - $3,745.00 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: $4,200.00 - $4,345.00 Choose Options Compare
Quick view Frankenstein Engine Dynamics Frankenstein Billet Aluminum Rocker Stands for M311 Heads - Black Anodized Frankenstein Engine Dynamics Billet Rocker Stand for M311 Heads For MSRP: Now: $145.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Black Anodized - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 Frankenstein Engine Dynamics Gen 3 LS Billet Valley Cover Fits 1997-2006 Gen 3 LS-Based Engines 4.8L 5.3L 5.7L 6.0L< MSRP: Now: $249.96 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Machined Finish - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 Frankenstein Engine Dynamics Gen 3 LS Billet Valley Cover Fits 1997-2006 Gen 3 LS- MSRP: Now: $249.96 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray - Machined Finish - LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engi MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray -Black Anodized- LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engines 4.8L 5.3L 6.0L 6.2L 7.0L MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 225cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 225cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) MSRP: Now: $4,200.00 Add to Cart 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 MSRP: Was: Now: $3,600.00 - $3,745.00 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 wi MSRP: Was: Now: $4,200.00 - $4,345.00 Choose Options Compare Compare Selected × OK
Quick view Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Black Anodized - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 Frankenstein Engine Dynamics Gen 3 LS Billet Valley Cover Fits 1997-2006 Gen 3 LS-Based Engines 4.8L 5.3L 5.7L 6.0L< MSRP: Now: $249.96 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Machined Finish - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 Frankenstein Engine Dynamics Gen 3 LS Billet Valley Cover Fits 1997-2006 Gen 3 LS- MSRP: Now: $249.96 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray - Machined Finish - LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engi MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray -Black Anodized- LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engines 4.8L 5.3L 6.0L 6.2L 7.0L MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 225cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 225cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) MSRP: Now: $4,200.00 Add to Cart 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 MSRP: Was: Now: $3,600.00 - $3,745.00 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 wi MSRP: Was: Now: $4,200.00 - $4,345.00 Choose Options Compare Compare Selected × OK
Quick view Frankenstein Engine Dynamics Frankenstein Gen 3 LS Billet Valley Cover Tray - Machined Finish - LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33 Frankenstein Engine Dynamics Gen 3 LS Billet Valley Cover Fits 1997-2006 Gen 3 LS- MSRP: Now: $249.96 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray - Machined Finish - LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engi MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray -Black Anodized- LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engines 4.8L 5.3L 6.0L 6.2L 7.0L MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 225cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 225cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) MSRP: Now: $4,200.00 Add to Cart 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 MSRP: Was: Now: $3,600.00 - $3,745.00 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 wi MSRP: Was: Now: $4,200.00 - $4,345.00 Choose Options Compare Compare Selected × OK
Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray - Machined Finish - LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engi MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray -Black Anodized- LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engines 4.8L 5.3L 6.0L 6.2L 7.0L MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 225cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 225cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) MSRP: Now: $4,200.00 Add to Cart 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 MSRP: Was: Now: $3,600.00 - $3,745.00 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 wi MSRP: Was: Now: $4,200.00 - $4,345.00 Choose Options Compare Compare Selected × OK
Quick view Frankenstein Engine Dynamics Frankenstein Gen 4 LS Billet Valley Cover Tray -Black Anodized- LS3 L92 LS2 L96 LC9 LY6 LH6 LSA L76 LMG Frankenstein Engine Dynamics Gen 4 LS Billet Valley Cover Fits Gen 4 LS-Based Engines 4.8L 5.3L 6.0L 6.2L 7.0L MSRP: Now: $249.96 Out of stock Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 225cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 225cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) MSRP: Now: $4,200.00 Add to Cart 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 MSRP: Was: Now: $3,600.00 - $3,745.00 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 wi MSRP: Was: Now: $4,200.00 - $4,345.00 Choose Options Compare Compare Selected × OK
Quick view Frankenstein Engine Dynamics Frankenstein M115 225cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 225cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) MSRP: Now: $4,200.00 Add to Cart 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 MSRP: Was: Now: $3,600.00 - $3,745.00 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 wi MSRP: Was: Now: $4,200.00 - $4,345.00 Choose Options Compare Compare Selected × OK
Quick view Frankenstein Engine Dynamics Frankenstein M115 240cc Cathedral Port LS Cylinder Heads (SET) 6-Bolt 3.780" Bore - Fits 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 LC9 L33 LH6 Frankenstein M115 6-Bolt 240cc Cathedral Port Cylinder Head (SET) Fits 3.780" and MSRP: Now: $3,300.00 Add to Cart Compare Quick view Frankenstein Engine Dynamics Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) MSRP: Now: $4,200.00 Add to Cart 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 MSRP: Was: Now: $3,600.00 - $3,745.00 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 wi MSRP: Was: Now: $4,200.00 - $4,345.00 Choose Options Compare Compare Selected
Quick view Frankenstein Engine Dynamics Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) Frankenstein M712 Boost Monster 283cc LS7 CNC Ported Cylinder Heads (SET) MSRP: Now: $4,200.00 Add to Cart 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 MSRP: Was: Now: $3,600.00 - $3,745.00 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 wi MSRP: Was: Now: $4,200.00 - $4,345.00 Choose Options Compare Compare Selected
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 MSRP: Was: Now: $3,600.00 - $3,745.00 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 wi MSRP: Was: Now: $4,200.00 - $4,345.00 Choose Options Compare
