Cometic 4.500" Bore Head Gasket 0.051" Thickness Multi-Layered Steel Mopar B/RB-Series 4304803-01-05 Valve Pocketed Bore

Valve Pocketed Bore

Fire Retardant Material

1965-1969 Buick Skylark

Since 1978

Cometic 4.500" Bore Head Gasket 0.051" Thickness Multi-Layered Steel Mopar B/RB-Series 4304803-01-05 Valve Pocketed BoreComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 051". 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