Cometic GM Gen II / Mark IV Big Block (396 / 402 / 427) 4.630in Bore .075in MLS-5 Head Gasket

Cometic GM Gen II / Mark IV Big Block (396 / 402 / 427) 4.630in Bore .075in MLS-5 Head Gasket

Marsoni

M251S

$147.94

Get it in 3 business days with 1 day shipping. Friday, May 29

Cometic GM Gen II / Mark IV Big Block (396 / 402 / 427) 4.630in Bore .075in MLS-5 Head GasketComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 075". 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

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Reviewed in the United States on June 6, 2026