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The Cometic MLS cylinder head gasket for GM/Mercury Marine 1050 Gen‑IV big block V8s is a .027 inch multi-layer steel head gasket with a 4.530 inch bore and two slotted lifter valley bolts, intended for high-output marine or automotive engines. MLS construction uses embossed Viton-coated outer layers and an adjustable stainless shim center to provide rebound, corrosion resistance, and sealing across aluminum-to-aluminum or aluminum-to-cast-iron interfaces without sealants.
Cometic GM/Mercury Marine 1050 Gen-IV Big Block V8 .027in MLS Cylinder Head Gasket-4.530in Bore
