Cylinder Head Accessories

Manley Severe Duty Stainless 8mm x 2.165 LS Intake Valves 12354-8 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 applications...

ARP 2000 Pro Series GM LSA Head Stud Kit 234-4346 - 12-Point These ARP Pro Series Head Bolts are made of 2000 (210,000 psi tensile strength) material and utilize a 12-point head. They are cold-forged and heat treated prior to thread rolling and...

ARP 8740 Pro Series GM LS1 Head Bolt Kit 234-4110 - Hex (1997-2003) 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...

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 LS 3.910 Bore MLS Head Gasket C5475-086 LS 3.910" Bore. 0.086" 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 C5475-120 LS 3.910" Bore. 0.120" 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 C5489-027 LS 4.100" 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 4.130 Bore MLS Head Gasket C5317-054 LS 4.130" Bore. 0.054" 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 4.190 Bore MLS Head Gasket C5319-040 LS 4.190" 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 LS w/M.I.D. Sleeves 3.910 Bore MLS Head Gasket C5788-030 LS w/M.I.D. Sleeves 3.910" Bore .030" Compressed Thickness MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel...

Cometic LS w/M.I.D. Sleeves 4.125 Bore MLS Head Gasket C5789-080 LS w/M.I.D. Sleeves 4.125" Bore .080" Compressed Thickness MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel...

Cometic LSX 4.165 Bore MLx Head Gasket C5702-044, Right Side LSX 4.165" Bore. 0.044" Compressed Thickness MLx Gaskets utilize an integrated "stopper" layer for combustion chamber sealing and improved clamp load around the cylinder without increasing bore...