Cylinder Head Accessories

Manley LS1/LS2/LS6 Race Series Stainless 8mm x 1.550 Exhaust Valves 11361-8 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...

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...

Cometic LS9/LSA 4.100 Bore MLx Head Gasket C5986-044, Left Side LS9/LSA 4.100" Bore. 0.044" Compressed Thickness MLx Gaskets utilize an integrated "stopper" layer for combustion chamber sealing and improved clamp load around the cylinder without...

Cometic LSX 4.185 Bore MLS Head Gasket C5935-030, Right Side LSX 4.185" 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...

Cometic LSX 4.185 Bore MLS Head Gasket C5936-030, Left Side LSX 4.185" 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...

Ferrea Competition Plus Hollow Stem 8mm x 1.615 LS7 Exhaust Valves These Hollow Stem Lightweight Valves are manufactured with a unique process that gun drill and micro polish the hollow stem cavity. These valves achieve a weight reduction of...

LSXceleration Gen V L83, L86, LT1, LT4 Head Bolt 22-11976 1 needed per engine. 12mm x 100mm, Internal Hex 13mm.

LSXceleration Stainless Steel 8mm x 1.570 LS Exhaust Valve 15-21570-1 Stainless Steel LS Valves 1.570" Head x 8mm Stem x 4.915" OAL x 0.160" Tip x 45 degree valve seat angle Features: Hardened Stem Tip Chrome Plated Stem Fully Machined...

LSXceleration Stainless Steel 8mm x 2.050 LS Intake Valve Set 15-22050-8 Stainless Steel LS Valves 2.050" Head x 8mm Stem x 4.870" OAL x 0.160" Tip x 45 degree seat angle Features: Hardened Stem Tip Chrome Plated Stem Fully Machined Surface Swirl...

Cometic LS 3.910 Bore MLS Head Gasket C5475-027 LS 3.910" Bore. 0.027" 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 3.910 Bore MLS Head Gasket C5475-075 LS 3.910" 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 outer layers of...

Cometic LS 4.100 Bore MLS Head Gasket C5489-098 LS 4.100" Bore. 0.098" 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...