Product Description
Main 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 200,000 psi for the 8740 material and kits come complete with hardened parallel-ground washers.
Applications: Pre-2007 Mitsubishi 4G63 DOHC 16 Valve Engines
12-Point Nuts
