When rotating assemblies fail it's typically the rods that let go, and given the stresses placed on connecting rods, it's no wonder. These Eagle ESP H-beam 6.125-inch rods (PN 612503D2000) are built to take whatever we throw at them. Their two-piece, forged, vacuum-degassed, 4340 steel construction provides strength while still weighing less than stock rods. Each rod is heat-treated, X-rayed, magnafluxed, and shot-peened to stress-relieve the metal. They come standard with ARP 2000 rod bolts.