Pro-I Chevrolet Gen III (LS-Series) Connecting Rods  Manufactured from oversized billet forgings using Carrillo’s proprietary chrome, nickel, moly, vanadium alloy, which meets all VAR (vacuum arc remelt ASTM standards). The oversized forging resulting in the proper grain flow as well as the surface removal of any potential inclusions or surface conversions generated by the forging process. The heat is validated, both by the supplier and an independent metallurgist whom confirm the desired physical and chemical properties of steel. All heat treat processes are via a mar-aged operation, resulting in UTS of 195,000 with a yield of 182,000 while maintaining the critical elements of low notch-sensitivity and ductility. All critical CNC machines at Carrillo are equipped with probing to accurately validate dimensional integrity. Carrillo’s dimensional integrity is comparable to none. In the production process each part is magnafluxed at least twice, further each piece is Rockwell tested to validate the heat treat procedure. A final shotpeen operation completes the part. The rods are finished off with Amco 45 bronze bushings and 7/16" ARP 2000 bolts (220,000psi).