Cometic Pontiac 389 / 421 V8 4.3in Bore .040in MLS Head Gasket | CGS-C15262-040

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
1949-1954	Jaguar	XK120	Base
1952-1954	Jaguar	XK120	M
1955-1957	Jaguar	XK140	Base
1955-1957	Jaguar	XK140	M
1955-1957	Jaguar	XK140	MC
1958-1961	Jaguar	XK150	Base
1958-1961	Jaguar	XK150	S
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

⚠️CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov