ARP is the World Leader in fasteners and is trusted by the industrys leading engine builders. When it comes to your build don't overlook one of the most important parts. Go with the best to secure your cylinder head to the engine block!
Pro series cylinder head 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. ARP Pro series kits come with 12-point nuts, and all kits come complete with hardened parallel washers for an even load distribution and accurate torque readings.