ARP Engine Bolt Kit - Hex Head - Chromoly - Black Oxide - SB Ford HARN08S003 External Seams

External Seams

Purple Prism

1971-1971 Mercury Marquis

1973-1974 Buick Century

17/64 in OD

ARP Engine Bolt Kit - Hex Head - Chromoly - Black Oxide - SB Ford HARN08S003 External SeamsARPs product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, IMSA, NASCAR and NHRA drag racing and marine applications. Since 1968, ARP is the fastener of champions and the world leader in fastener technology. Product Description: Engine and Accessory