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Cometic MLS head gasket for Pontiac 326/389/421 V8 (.040" thickness, 4.300" bore) uses embossed outer layers and an uncoated stainless steel shim center to improve clamp load distribution and sealing around the combustion chamber. The HP shim technology increases clamp loadability near the bore while multi-layer stainless and AMP coatings help meet harsh sealing demands. This gasket aims to reduce required clamp load and limit bore distortion.
Cometic Pontiac 389/421 V8 4.3in Bore .040in MLS Head Gasket
