
The Cometic MLS head gasket for GM/Mercury Marine 1050 Gen-IV Big Block V8 (4.600in bore) delivers a high-integrity multi-layer steel seal for demanding engines. It features a compressed thickness of 0.056" and installs without sealants. The gasket uses embossed stainless outer layers coated with Viton and an uncoated stainless shim to tolerate dissimilar head/block materials, resist corrosion, rebound under load, and better distribute clamp forces to minimize bore distortion.
Cometic GM/Mercury Marine 1050 Gen-IV Big Block V8 .056in MLS Cylinder Head Gasket-4.600in Bore