Arp Cylinder Head Stud Kit - Hex Nuts - Chromoly - Black Oxide - Undercut - Small Block Ford - Kit-254-4503--Notes: Fits SBF 351W w/factory heads, M-6049-J302, SVO high port & M-6049-L302 GT-40 style, Edelbrock aluminum & iron Dart with 1/2-13 cylinder block threads. State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO