R&R Pro 7.3L Ford Powerstroke Diesel Billet 4340 Chromoly Steel I-Beam Rods with ARP 2000 rod bolts and Ampco 45 TM pin bushings. In-stock, limited to quantity on hand. If out of stock, please allow up to 12 weeks for delivery. All R&R Pro Billet 4340 Chromoly Steel connecting rods are cryogenically treated, triple-tempered, vacuum heat treated, magnafluxed, rockwell tested, and balanced. For more information on our steel connecting rods, please visit our website.