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The Cometic MLS cylinder head gasket for GM/Mercury Marine 1050 Gen‑IV big block V8 (4.500in bore) is offered with a nominal .066in thickness and two slotted lifter valley bolts. Built from embossed stainless layers with Viton-coated outer faces, it resists corrosion, rebounds under load and seals dissimilar head and block materials without sealants, while helping distribute clamp load to limit bore distortion.
Cometic GM/Mercury Marine 1050 Gen-IV Big Block V8 .066in MLS Cylinder Head Gasket
