
The Cometic MLS cylinder head gasket for GM/Mercury Marine 1050 Gen‑IV Big Block V8 supports 4.580in bore applications with a compressed thickness of 0.066in. It uses multiple embossed stainless steel layers, outer Viton coatings and an uncoated shim layer to provide rebound, corrosion resistance and reliable sealing without sealants. The layered MLS design conforms load distribution across the sealing area and reduces required clamp load to help minimize bore distortion.
Cometic GM/Mercury Marine 1050 Gen-IV Big Block V8 .066in MLS Cylinder Head Gasket-4.580in Bore