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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 .060" 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 resist demanding sealing conditions while an uncoated stainless shim layer permits thickness customization and better load distribution to reduce bore distortion.
Cometic GM/Mercury Marine Big Block V8 Gen-IV/V/VI .060in MLS Cylinder Head Gasket - 4.500in Bore
