Cylinder Head Accessories

Cometic LS 4.100 Bore MLS Head Gasket C5489-051 LS 4.100" Bore. 0.051" 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 4.060 Bore MLS Head Gasket C5751-051 LS 4.060" Bore. 0.051" 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...

Cometic LS 3.910 Bore MLS Head Gasket C5475-051 LS 3.910" Bore. 0.051" 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 3.810 Bore MLS Head Gasket C15361-040 LS 3.810" 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...

Cometic LS 3.810 Bore MLS Head Gasket C15361-051 LS 3.810" Bore. 0.051" 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...

LSXceleration GM LS9 MLS 7-Layer Head Gasket 15-22033 4.100" bore x .053" thickness x 7-layer MLS. Made in Germany.    

Stock Replacement GM LS 1.590 Exhaust Valve 15-1590  

Stock Replacement GM LS 2.165 Intake Valve   

Chevrolet Performance Gen V LT1/LT4 MLS Head Gasket 12654622 4.0944" bore x .053" thickness x 7-layer MLS See our 14-54622 for same OEM quality!    

Holley LS Steam Tube Kit 26-551 Steam Vent Adapters & kits. They are designed to eliminate trapped air and steam from your engine to prevent hot spots or overheating. The complete kits are available to plumb your LS engine and include the...

Chevrolet Performance GM LS9 MLSHead Gaskets 12622033 **For the same quality at a better price, see our head gasket # 15-22033. 4.100" bore x .053" thickness x 7-layer MLS    

Mahle Performance LS MLS Head Gasket 55043 - 4.100 Bore .051 Thickness 4.100" 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...