Cometic 4.540" Bore Head Gasket 0.030" Thickness Multi-Layered Steel BB Chevy Window & Cage Nets Black anodize finish

Black anodize finish

12 AN Female O-Ring

1984-1995 Pontiac Bonneville

Includes compression fitting for 3/16" steel brake line

Cometic 4.540" Bore Head Gasket 0.030" Thickness Multi-Layered Steel BB Chevy Window & Cage Nets Black anodize finishComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 030". Cometic MLS (Multi Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two