Cometic Pontiac 389/421 V8 4.3in Bore .040in MLS Head Gasket

The HP shim technology increases clampload around the combustion chamber, thereby increasing the sealability of the head gasket around the open deck block.

The embossed outer layers of the gaskets meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes

The center or shim layer is an uncoated stainless steel layer which can be varied to accommodate multiple thickness requirements

MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel

Pontiac 326/389/421 V8 .040in. MLS Cylinder Head Gasket; 4.300in. Bore

Pontiac 326/389/421 V8 .040" MLS Cylinder Head Gasket, 4.300" Bore

Cometic Pontiac 389/421 V8 4.3in Bore .040in MLS Head Gasket

Requires less clamp load creating less bore distortion

Conforms load distribution across the sealing area

Pontiac 326/389/421 V8 Cylinder Head Gasket

Pont 326/389/421 V8 Cylinder Head Gasket

Embossed Outer Layers Coated w/Viton

Engine Cylinder Head Gasket

Cylinder Head Gasket