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Cometic MLS cylinder head gasket for Chevrolet Mark-IV Big Block V8 with a 4.540in bore and .066in compressed thickness. The gasket uses multiple layers of stainless steel with embossed, Viton-coated outer layers to provide a corrosion-resistant, heat-tolerant seal that requires no sealants and withstands differing head-to-block material forces. An uncoated center shim allows thickness adjustment while embossed layers conform to surfaces and distribute clamp load more evenly.
Cometic Chevrolet Mark-IV Big Block V8 .066in MLS Cylinder Head Gasket - 4.540in Bore
