ARP 185-5401 Main Stud Kit for Olds 455 ymm_30 Specifications Socket Size(s) 3/8 hex

Specifications Socket Size(s) 3/8 hex UHL (Qty: 16) 1

Specifications Socket Size(s) 3/16 Allen OAL 2

Package Type: Skin

with handy 12-point or standard hex heads

ARP 185-5401 Main Stud Kit for Olds 455 ymm_30 Specifications Socket Size(s) 3/8 hexThere 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