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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 .120" nominal gasket with a 4.530" bore installs with four bolts in the lifter valley and requires no sealants. Embossed stainless outer layers coated with Viton tolerate harsh sealing conditions while an uncoated stainless shim layer permits tailored thickness and helps distribute clamp loads evenly across the sealing area.
Cometic GM/Mercury Marine Big Block V8 Gen-IV/V/VI .120in MLS Cylinder Head Gasket - 4.530in Bore
