ARP Main Stud Kit - Hex Nuts - 2-Bolt Mains - Chromoly - Black Oxide - Windage Tray - Big Block Ford Air Hose Bracket 450" OD works well with

450" OD works well with our 7256 conical valve springs in

3/8-24 in Thread Body / Stud

If Weight And Fuel Capacity Are Critical

These engine to transmission adapters are an excellent choice for street rods

ARP Main Stud Kit - Hex Nuts - 2-Bolt Mains - Chromoly - Black Oxide - Windage Tray - Big Block Ford Air Hose Bracket 450" OD works well withARPs 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: Main Stud Kit Hex Nuts 2