Forged 4340 steel H-Beam connecting rods are forged from a two-piece forging and feature a fully machined and shot-peened surface. Sizing is held to exact tolerances. Sold as a weight-matched set. Equipped with ARP 2000 bolts for even more power-handling capability. Recommended for competition use. Forged 4340 Steel H-Beam Rods - NISSAN CA18. Torque to 43 ft-lbs, ARP moly lube ONLY. NISSAN CA18