Arp Cylinder Head Stud Kit - Hex Nuts - Chromoly - Black Oxide - Small Block Ford - Kit-154-4005--Notes: Fits 289-302 engines w/351W heads, 7/16-14 cylinder block thread, M6049-J302, SVO high port & M6049-L302, Edelbrock aluminum , GT-40 style with insert T 1/2 to 7/16 washer. State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO