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A Cometic MLS head gasket for Chevrolet Mark IV big-block V8 engines (396/402/427) with a 4.630" bore and .080" compressed operating thickness. Constructed from multiple embossed stainless steel layers with Viton-coated outer layers and an uncoated center shim, the MLS design resists corrosion and can seal aluminum-to-aluminum or aluminum-to-iron interfaces without sealants while helping control bore distortion through improved load distribution.
Cometic BB 4.630in Bore .080 inch Chevy Mark IV Big Block (396 / 402 / 427) MLS Head Gasket
