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The Cometic MLS cylinder head gasket for GM/Mercury Marine 1050 Gen‑IV big block V8s is a .054 inch multi-layer steel head gasket with a 4.530 inch bore and two slotted lifter valley bolts, engineered for engines with elevated sealing demands. Embossed outer layers coated with Viton and a variable uncoated stainless shim layer combine to resist corrosion, rebound under load, and provide consistent sealing across aluminum and cast-iron combinations without sealants.
Cometic GM/Mercury Marine 1050 Gen-IV Big Block V8 .054in MLS Cylinder Head Gasket-4.530in Bore
