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


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