ARP Custom Age 625+ Venolia/Brooks/KB Aluminum Rod Replacement Bolts

These are high-performance connecting rod bolts designed for demanding engine applications. They are described as "General Replacement" with a 7/16" thread size, 2.000" Under Head Length (UHL), 1.000" thread length, and a 1/2" wrench size. They are made from Custom Age 625+ material, a superalloy with high cobalt content, offering superior fatigue characteristics and a tensile strength of 260,000-280,000 psi. This material also provides immunity to hydrogen embrittlement and corrosion. They are primarily used in connecting rods for applications requiring extremely high loads, high RPM, and endurance, such as Formula 1, NASCAR, and IRL. The kit includes 8 bolts and is essential for securing the internals of an engine's bottom end.