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The Cometic MLS cylinder head gasket for GM/Mercury Marine Big Block V8 Gen-IV/V/VI is a multi-layer steel head gasket that seals high-output engines. This .051" nominal gasket with a 4.500" bore installs with four bolts in the lifter valley and requires no sealants. Embossed stainless outer layers coated with Viton handle harsh sealing environments while an uncoated stainless shim layer allows tailored thickness and improved load conformity across sealing surfaces.
Cometic GM/Mercury Marine Big Block V8 Gen-IV/V/VI .051in MLS Cylinder Head Gasket - 4.500in Bore
