ARP 185-5401 Main Stud Kit for Olds 455 ymm_46 500˝ Thread Size 7/16-20 Fastener

500˝ Thread Size 7/16-20 Fastener Style: Bolt

The system is ECE type-approved and designed for plug-and-play installation without ECU remapping or additional components

Complete the look with a set of exquisite tailpipes in carbon fibre

With parts cast in the in-house foundry

Focus 2000-2010

ARP 185-5401 Main Stud Kit for Olds 455 ymm_46 500˝ Thread Size 7/16-20 FastenerThere 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