Cylinder Heads

Cometic LS Truck 3.840 Bore Street Pro Top End Gasket Kit PRO1040T 2001-10 4.8/5.3L Truck/Van/SUV 3.840" Bore COMETIC StreetPro Kits cater to the budget-minded street-rodder who is looking to purchase a kit with all necessary gaskets and seals needed for...

Cometic LS w/M.I.D. Sleeves 4.125 Bore MLS Head Gasket C5789-040 LS w/M.I.D. Sleeves 4.125" Bore .040" Compressed Thickness MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel...

Cometic LS3 4.100 Bore Street Pro Top End Gasket Kit PRO1043T (Rectangle Port) 6.0L 6.2L W/ LS3 Style Manifold COMETIC StreetPro Kits cater to the budget-minded street-rodder who is looking to purchase a kit with all necessary gaskets and seals needed...

Cometic LSX 4.125 Bore MLS Head Gasket C5933-075, Right Side LSX 4.125" Bore. 0.075" Compressed Thickness MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel. The embossed...

Cometic LSX 4.125 Bore MLS Head Gasket C5934-075, Left Side LSX 4.125" Bore. 0.075" Compressed Thickness MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel. The embossed...

Ferrea 6000 Series 8mm x 1.600 Super Flo LS Exhaust Valves +.100 Long Competition swirl-polished valves with higher fatigue resistance and tensile strengths than the competitors’ best offering. These valves are made to withstand high spring...

LSXceleration Inconel 8mm x 1.600 LS Exhaust Valves 15-31570-8 Inconel LS Valve 1.570" 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 Surface...

Mahle Performance LS MLS Head Gasket 55041 - 3.910 Bore 3.910" bore x .051" thickness MAHLE performance MLS head gaskets are comprised of 3 stainless steel layers. Sealing beads surround the combustion chamber and coolant passages emphasizing clamp...

Manley LS3/LS92/LS99 Extreme Duty Stainless 8mm x 1.590 Exhaust Valves 11685-8 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...

Manley Extreme Duty Stainless 8mm x 1.590 LT1 Exhaust Valves

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 LSX 4.200 Bore Vulcan Cut-Ring Head Gasket CR192059L LSX 4.200" 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...