ARP 125-5401 Main Stud Kit for BUICK 455 ymm_82 The precision J-form threads are

The precision J-form threads are rolled after heat-treat for much stronger threads than the competition

The system also comes with a specially developed control kit

The threads are rolled after heat-treating which gives them about 2000% better fatigue strength than most main bolts that are threaded prior to heat-treating

3/16 Allen OAL 2

ARP 125-5401 Main Stud Kit for BUICK 455 ymm_82 The precision J-form threads areThere are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place. The studs