ARP GM Main Stud Kit - Duramax LBZ/Lmm R03J003M This kit is engineered to

This kit is engineered to be 100 percent bolt-on

Stud kits come complete with nuts and washers

The clean color styles of the GF-125 give a finished look to attract both fans and potential sponsors

813 in Bore

8-Bolt Crank

ARP GM Main Stud Kit - Duramax LBZ/Lmm R03J003M This kit is engineered toARPs 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 12 Point Nuts