Having a good set of conrods installed into you XR6 Turbo ( Barra) is a vital part of ensuring the life of your engine. The I beam conrods made by Manley and are forged from 4340 air craft quality vacuum degassed material. The rods are then shot peened after machining to mil spec and 100 % individually magnafluxed. The conrods are fitted with 7/16 ARP 2000 bolts. A brass bush it fitted to the small end. This conrod is made to suit big horsepower applications and if you would like any further info just give us a call and we would only be happy to help. 000187554