Description
These Pro series studs from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining and are rated at a whopping 190,000 psi. The Pro series kits are also available with 12-point nuts, and all kits come complete with hardened parallel washers for an even load distribution and accurate torque readings.
– Fastener Style: Stud
– Thread Size: 7/16-14 in.
– Nut Style: Hex
– Fastener Finish: Black oxide
– Washers Included: Yes
– Notes: If using with 351W/Edelbrock Performer/Performer RPM Heads OR cylinder heads with 1/2 in. bolt holes, 1/2 in. to 7/16 in. insert washers must be used. Kit 154-4005 includes these washers
