ARP Hex Nuts Main Stud Kit 2-Bolt Mains Chromoly Black Oxide - BMC/Triumph/Rover 4-Cylinder Chassis Engineering Billet aluminum adapter allows installation

Billet aluminum adapter allows installation of a two-piece style crankshaft seal and early (pre-1986) crankshaft into a 1986 and newer SB Chevy (pre-LS) engine

Poly bushings are designed for racing and work great in pull bars (torque links) and bump stops

Engine Block Hardware

Jig-built For Consistency

ARP Hex Nuts Main Stud Kit 2-Bolt Mains Chromoly Black Oxide - BMC/Triumph/Rover 4-Cylinder Chassis Engineering Billet aluminum adapter allows installationARPs 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