
The Cometic MLS cylinder head gasket for GM/Mercury Marine 1050 Gen‑IV big block V8 (4.500in bore) is specified at .036in nominal thickness and uses two slotted lifter valley bolts. Its multi‑layer stainless construction with Viton-coated outer layers resists corrosion, rebounds under load and seals dissimilar head/block materials without sealants, helping distribute clamp load to reduce bore distortion.
Cometic GM/Mercury Marine 1050 Gen-IV Big Block V8 .036in MLS Cylinder Head Gasket