For demanding race engine builds using IE Connecting Rods with standard ARP 2000 alloy 5/16″, this rod bolt upgrade uses ARP’s specialty formulated Custom Age 625 Plus.
• ARP Custom Age 625+ Super-Alloy
• Typical tensile strength is 260,000-280,000 psi
• Fits all IE rods with 5/16″ bolts
• Reusable (no more than 3 times recommended)
Street Density, Track Density