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This Cometic MLS head gasket is the right-side .051-inch multi-layer steel gasket for GM/Mercury 8.1L (496ci) big block engines with a 4.350-inch bore. It uses embossed stainless steel outer layers coated with heat-resistant Viton and an uncoated center shim layer to deliver strong sealing and rebound characteristics. The design is intended to resist corrosion and handle the shearing forces between dissimilar head and block materials without sealant.
Cometic GM / Mercury 8.1L 496ci 4.350in Bore .051in MLS RH Head Gasket
