Cylinder Heads

Cometic Gen V LT1/4 4.200 Bore MLx Head Gasket C15202-060 Gen V LT1/LT4 4.200" Bore. 0.060" Compressed Thickness MLx Gaskets utilize an integrated "stopper" layer for combustion chamber sealing and improved clamp load around the cylinder without...

Cometic Dart LS Next 4.200 Bore MLx Head Gasket C15363-060, Left Side Dart LS Next 4.200" Bore. 0.060" Compressed Thickness MLx Gaskets utilize an integrated "stopper" layer for combustion chamber sealing and improved clamp load around the cylinder...

Cometic Dart LS Next 4.200 Bore MLx Head Gasket C15362-060, Right Side Dart LS Next 4.200" Bore. 0.060" Compressed Thickness MLx Gaskets utilize an integrated "stopper" layer for combustion chamber sealing and improved clamp load around the cylinder...

Chevrolet Performance Gen V L83 5.3L MLS 5-Layer Head Gasket 12622325 3.835" (97.4mm) bore x .052" (1.33mm) thickness x 5-layer MLS.     

Cometic Dart LS Next 4.200 Bore MLx Head Gasket C15363-044, Left Side Dart LS Next 4.200" Bore. 0.044" Compressed Thickness MLx Gaskets utilize an integrated "stopper" layer for combustion chamber sealing and improved clamp load around the cylinder...

Cometic Dart LS Next 4.200 Bore MLX Head Gasket C15362-044, Right Side Dart LS Next 4.200" Bore. 0.044" Compressed Thickness MLx Gaskets utilize an integrated "stopper" layer for combustion chamber sealing and improved clamp load around the cylinder...

ARP 8740 Pro Series GM LSA Head Bolt Kit 134-3713, 12-Point These ARP Pro Series Head Bolts are made of 8740 (190,000 psi tensile strength) material and utilize a hex head. They are cold-forged and heat treated prior to thread rolling and machining...

LSXceleration Inconel 8mm x 1.600 LS Exhaust Valves 15-31600-8 Inconel LS Valve 1.600" Head x 8mm Stem x 4.915" OAL x 0.160" Tip Features: Hardened Stem Tip Ideal for Extreme Duty and Turbo Applications Chrome Plated Stem Fully Machined...

LSXceleration Inconel 8mm x 1.600 LS Exhaust Valve 15-31600-1 Inconel LS Valve 1.600" Head x 8mm Stem x 4.915" OAL x 0.160" Tip Features: Hardened Stem Tip Ideal for Extreme Duty and Turbo Applications Chrome Plated Stem Fully Machined...

SCE LS 4.056 Bore Vulcan Cut-Ring Head Gasket CR200559 LS 4.056" Gasket Bore x 0.059" Compressed Thickness. Sold individually. A hybrid design forged to harness the best sealing properties of two head gasket types. COMPOSITE - Pliable, perforated...

SCE LS 4.150 Bore Vulcan Cut-Ring Head Gasket CR201559 LS 4.150" Gasket Bore x 0.059" Compressed Thickness. Sold individually. A hybrid design forged to harness the best sealing properties of two head gasket types. COMPOSITE - Pliable, perforated...

LSXceleration XF3 LS3 280cc/68cc 11° CNC Cylinder Heads - Titanium Intake, Inconel Exh, 0.660" Lift, Titanium Retainers 15-361433-2 6-bolt Rectangular Port (LS3) CNC Cylinder Head Pair w/ Billet Rocker Stands. Features: 6 bolt casting 11°...