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The Cometic MLS head gasket is specified for Chevrolet Mark-IV big block V8 engines with a 4.540 in bore and a compressed operating thickness of 0.030 in. Constructed from multiple embossed stainless steel layers with Viton-coated outer faces, these MLS gaskets require no sealants and are suitable for aluminum-to-aluminum or aluminum-to-iron head/block combinations while resisting corrosion and accommodating mixed-material shear.
Cometic Chevy BB 4.540in Bore .030 inch MLS 396/402/427/454 Head Gasket
