Cylinder Heads

Manley Extreme Duty Stainless 8mm x 1.590 LT1 Exhaust Valves

Manley Race Series Stainless 8mm x 1.615 LS7 Exhaust Valves Chrome Stems and Hard Tips Swirl Polished and Machined Intakes are “Pro Flo” for Improved Flow O.E. Style Radius Keeper Grooves

ARP 2000 Pro Series GM Gen V LT1/LT4 Head Bolt Kit 134-3711 ARP has been the leading manufacturer of performance automotive fasteners since 1968. From it's beginning, ARP has grown to be exceptionally self-reliant and controls all aspects of the...

ARP 2000 Pro Series GM Gen V LT1/LT4 Head Bolt Kit 134-3710 ARP has been the leading manufacturer of performance automotive fasteners since 1968. From it's beginning, ARP has grown to be exceptionally self-reliant and controls all aspects of the...

Manley Race Series Stainless 8mm x 2.000 GM LS Intake Valves 11360-8 Manley is known as one of the leading manufacturers of Racing Valves in the world. Manley Racer Series Stainless Steel Valves were engineered for Street Performance and Racing...

GM LS 2004-2014 12-Point Head Bolt Kit TBS-002ERL Features & Benefits:  Material - Chromemoly Alloy Steel Yield Strength - 170,000 PSI Finish - Black Oxide Reduced Wrenching Size – Provides Extra Socket Clearance Choose Form...

GM LS 1997-2003 12-Point Head Bolt Kit TBS-001ERL Features & Benefits:  Material - Chromemoly Alloy Steel Yield Strength - 170,000 PSI Finish - Black Oxide Reduced Wrenching Size – Provides Extra Socket Clearance Choose Form...

GM LS 2004-2014 Hex Head Bolt Kit HBS-002ERL Features & Benefits:  Material - Chromemoly Alloy Steel Yield Strength - 170,000 PSI Finish - Black Oxide Reduced Wrenching Size – Provides Extra Socket Clearance Choose Form...

GM LS 1997-2003 Hex Head Bolt Kit HBS-001ERL Features & Benefits:  Material - Chromemoly Alloy Steel Yield Strength - 170,000 PSI Finish - Black Oxide Reduced Wrenching Size – Provides Extra Socket Clearance Choose Form...

Mahle MLS Head Gasket 54445 - 6.0L GM 6.0L VIN H N & U 1999-2008 CONSOLIDATED MLS  Multi-layer steel (MLS) cylinder head gaskets. Increase torque and performance while decreasing oil consumption and emissions. The development goals in engine...

Dart Race Series GM LS Gen III 10 Degree 368cc CNC Aluminum Cylinder Head 11081050 - Bare Recommended for maximum competition LS engines with 4.155” bore or larger. Drag race, maximum competition, naturally aspirated, heavy nitrous or forced...

Holley LS Steam Tube Kit 26-550 Steam Vent Adapters & kits. They are designed to eliminate trapped air and steam from your engine to prevent hot spots or overheating. The complete kits are available to plumb your LS engine and include the...