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Cometic MLS cylinder head gasket for Pontiac 326/389/421 V8 (4.300in bore, .036in compressed thickness) increases clamp load around the combustion chamber to improve sealability on open-deck blocks. Built from multiple embossed AMP-coated and uncoated stainless steel layers with Viton-coated outer faces, it uses a center shim to vary thickness, distribute clamp load, require less clamp pressure and reduce bore distortion while meeting harsh sealing demands.
Cometic Pontiac 326/389/421 V8 .036in MLS Cylinder Head Gasket - 4.300in Bore
