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The Cometic MLS head gasket for Pontiac 400/428/455 V8 (4.300in bore, nominal .098in) incorporates embossed stainless steel layers with Viton-coated outer faces and AMP for durable sealing. Compressed operating thickness is 0.027". The uncoated stainless shim center can be varied to meet thickness requirements, helping to conform clamp load across the sealing area, resist corrosion, and eliminate the need for additional sealants.
Cometic Pontiac 400/428/455 V8 .098in MLS Cylinder Head Gasket - 4.300in Bore
