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Cometic MLS cylinder head gasket for Chevrolet Mark-IV Big Block V8 with a 4.540in bore and .089in compressed thickness. Constructed from several stainless steel layers with embossed outer faces coated in Viton, it provides a durable, corrosion-resistant seal that requires no sealants and resists the shearing forces between dissimilar head and block materials. The uncoated center shim supports thickness variation while embossed layers distribute load and reduce clamp requirements.
Cometic Chevrolet Mark-IV Big Block V8 .089in MLS Cylinder Head Gasket - 4.540in Bore
