Manley takes their H-Lite Series connecting rods seriously. Manufactured from 4340 forgings, the rods are heat-treated, stress-relieved, shot-peened, and 100 percent magnafluxed. These lightweight versions feature premium 3/8 in. ARP 2000 cap fasteners. They offer exacting tolerances, high-quality standards, and pricing that's hard to beat. All H-beams are not the same; ensure a successful build with Manley Performance steel H-Lite connecting rods—available for applications spanning a half-century.