Cometic 4.150" Bore Head Gasket 0.040" Thickness Driver Side Multi-Layered Steel - 6-Bolt Head 42030BK Flat Milling:

Flat Milling:

Smoked Dark

GM Powerglide

Shifter Cable Quick Disconnect and Extension

a firewall mount and side flange mount

Cometic 4.150" Bore Head Gasket 0.040" Thickness Driver Side Multi-Layered Steel - 6-Bolt Head 42030BK Flat Milling:Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 040". 18 Bolt Heads. Left Side. Cometic MLX (Multi Layer Stopper) gaskets utilize an integrated stopper layer for combustion chamber sealing and improved clamp load around the cylinder without increasing bore distortion. MLX technology can be found in some head gaskets and are made from the same