Cylinder Heads

Cometic LSX 4.200 Bore MLx Head Gasket C5078-040, Left Side LSX 4.200" Bore. 0.040" Compressed Thickness MLx Gaskets utilize an integrated "stopper" layer for combustion chamber sealing and improved clamp load around the cylinder without increasing bore...

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 LS7 4.150 Bore MLx Head Gasket C5030-052 LS 4.150" Bore. 0.052" Compressed Thickness MLx Gaskets utilize an integrated "stopper" layer for combustion chamber sealing and improved clamp load around the cylinder without increasing bore distortion...

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...

Cometic LS 3.910 Bore MLS Head Gasket C5475-030 LS 3.910" Bore. 0.030" Compressed Thickness MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel. The embossed outer layers of...

Cometic LS 4.130 Bore MLS Head Gasket C5317-040 LS 4.130" Bore. 0.040" Compressed Thickness MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel. The embossed outer layers of...

Cometic LS7 4.150 Bore MLx Head Gasket C5030-040 LS 4.150" Bore. 0.040" Compressed Thickness MLx Gaskets utilize an integrated "stopper" layer for combustion chamber sealing and improved clamp load around the cylinder without increasing bore distortion...

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...

LSXceleration GM Gen V 6.6L L8T MLS Head Gasket 14-88186 (Like GM 12688186) 4.0944" (104mm) bore x .0523" (1.33mm) thickness.    

Dart Stainless Steel GM LS 1.600 Exhaust Valve 21391600 Dart stainless steel valves are designed to withstand the pressures of high-lift roller cams and feature a head design that promotes high flow. They are constructed of high-strength stainless steel...

Point One P1 GM LS Head Bolt Kit K003-HB02E - 2004-Up, Hex - Except LS9 (Same Primary Bolt Length) Point One E190 Head Bolts boast a 190,000psi nominal tensile strength, crafted from premium-quality steel from US mills. All fasteners are...

Cometic LS 4.130 Bore MLS Head Gasket C5317-070 LS 4.130" Bore. 0.070" Compressed Thickness MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel. The embossed outer layers of...