Note: These bolts are specifically designed for use with OEM connecting rods. • Made from seamless and defect-free 8740 chromoly steel, nearly five times stronger than OEM bolts. • Heat-treated before grinding and thread rolling, with a large under head radius for enhanced strength. • Suitable for a wide range of applications, from stock replacement to high-performance racing engines. ARP manufactures top-quality replacement rod bolts for popular import and domestic Sport Compact engines. These bolts are heat treated to a nominal tensile strength of 200,000 psi, and the threads are rolled after heat treat for optimum fatigue strength. They outperform OEM fasteners in terms of durability and service life, and can handle the extra stress of high combustion pressure engines. For extreme applications, rod bolts made of special ARP2000 material (rated at 220,000 psi nominal tensile strength) are available, including those with the patented Wave-Loc design. Part # 208-6001 This kit fits the following engines: B18A1, B18B1, B20B4, B20Z2, D16A6, D16B5, D16Y5, D16Y7, D16Y8, D16Z6, D16A1.

These ARP connecting rod bolts are a must - have for anyone looking to upgrade their engine. Whether you're a daily driver in need of a reliable stock replacement or a racing enthusiast aiming for high - performance in circle track, marine, or drag racing, these bolts are perfect for you. They're made from 8740 chromoly steel, which makes them super strong. With a nominal tensile strength of 200,000 psi (220,000 psi for ARP2000 material), they can handle high combustion pressure. They fit a variety of B and D - series engines like B18A1, D16Y5, etc.