Cylinder Heads

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...

LSXceleration OE Replacemant Head Bolts for GM LS '04 & Up (Like GM # 17800568) 2 bolt kits needed per engine (1 Bolt kit does 1 cylinder head).

LSXceleration OE Replacemant Head Bolts for GM LS '97-'03 (Like GM # 12498545) 2 bolt kits needed per engine (1 Bolt kit does 1 cylinder head).

Chevrolet Performance L92 Aluminum Cylinder Head Assembly 12711770 (Superseded 12629062) Stock L92 cylinder head. Features: For 4.000" Bore & up Solid Stem Intake and Exhaust Valves 0.510" Max Lift Valve Springs Add LSXceleration's...

ARP 8740 Pro Series GM LT1/LT4 Rocker Arm Studs 234-7208 ARP Pro Series Rocker Arm Studs are made from 8740 (190,000 psi tensile strength) material. They are held to a concentric tolerance of only .005" T.I.R. from thread pitch to thread pitch. These...