
Cometic MLS head gasket for Chevrolet Mark-IV Big Block V8, 4.630in bore with a compressed operating thickness of 0.058in. Uses multiple embossed stainless steel layers with AMP coatings and an uncoated shim layer; outer faces are coated with Viton on both sides (heat resistant to 250 C/482 F). MLS construction seals without sealants, suits aluminum-to-aluminum or aluminum-to-iron combinations, and helps conform sealing load while requiring less clamp load and reducing bore distortion.
Cometic Chevrolet Mark-IV Big Block V8 .058in MLS Cylinder Head Gasket - 4.630in Bore