Cometic 4.080" Bore Head Gasket 0.051" Thickness Multi-Layered Steel SB Ford Underwear Top Opens at 32 psi and

Opens at 32 psi and higher

7/8-9 in Thread

500 to 800 CFM

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Cometic 4.080" Bore Head Gasket 0.051" Thickness Multi-Layered Steel SB Ford Underwear Top Opens at 32 psi andComprised 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