Arp Cylinder Head Stud Kit - 12 Point Nuts - Chromoly - Black Oxide - Big Block Ford - Kit-155-4203--Notes: Fits 429-460 engines w/385 series & new 429 CJ SVO aluminum # M6049-A429, & 460 SVO aluminum #'s M6049-A460 & M6049-B460. State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO