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Cometic MLS cylinder head gasket for Pontiac 326/389/421 V8 (4.300in bore, .066in compressed thickness) is built from multiple embossed layers of AMP-coated and uncoated stainless steel to provide consistent sealing. Embossed outer layers with Viton coating meet demanding sealing environments and surface finishes. A center shim layer permits thickness variation, distributes clamp load, and reduces bore distortion while requiring less clamp pressure than some traditional designs.
Cometic Pontiac 326/389/421 V8 .066in MLS Cylinder Head Gasket - 4.300in Bore
