Cometic Pontiac 326/389/421 V8 .027in MLS Cylinder Head Gasket - 4.300in Bore

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

This Part Fits:

Year	Make	Model	Submodel
1959-1966	Pontiac	Bonneville	Base
1959-1962	Pontiac	Bonneville	Custom
1959-1966	Pontiac	Bonneville	Safari
1964-1966	Pontiac	Catalina	2+2
1959-1966	Pontiac	Catalina	Base
1959-1966	Pontiac	Catalina	Safari
1962-1966	Pontiac	Catalina	Ventura
1962-1966	Pontiac	Grand Prix	Base
1964-1966	Pontiac	GTO	Base
1959-1966	Pontiac	Star Chief	Base
1966	Pontiac	Star Chief	Executive
1961,1963-1966	Pontiac	Tempest	Base
1964-1965	Pontiac	Tempest	Custom
1961	Pontiac	Tempest	LeMans
1961,1963-1966	Pontiac	Tempest	Safari
1960-1961	Pontiac	Ventura	Base