Cometic MLS head gasket for Chevrolet Mark-IV Big Block V8, 4.630in bore with a compressed operating thickness of 0.072in. Comprised of multiple embossed stainless steel layers with AMP coatings and an uncoated shim layer, the outer faces are coated with Viton on both sides (heat resistant to 250 C/482 F). MLS construction provides reliable sealing without sealants for aluminum-to-aluminum or aluminum-to-cast-iron setups, and helps distribute sealing load while reducing clamp load and bore distortion.
Cometic Chevrolet Mark-IV Big Block V8 .072in MLS Cylinder Head Gasket - 4.630in Bore