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The Cometic MLS head gasket for GM/Mercury 8.1L (496ci) big block is a right-side .040" multi-layer steel gasket. It uses embossed outer layers coated with heat-resistant Viton and an uncoated stainless shim layer to provide strong sealing under demanding conditions. MLS construction is suitable for aluminum-to-aluminum or aluminum-to-iron head applications and is intended to seal without additional sealants.
Cometic GM / Mercury 8.1L 496ci 110.49mm .040 inch MLS RHS Head Gasket
