State of the art 4340 H-Beam Connecting Rod. They feature heat-treated, stress relieved and shot peened bodies. The C/L-C/L length is 6.125" with a 2.100 bearing housing and bronze bushed .9278" pin bore. The cap and rod are serialized at the parting line to ensure proper mating after disassembly. BTR inspects them for bearing housing dia. , pin bore dia. ,bend/twist and C/L length. They are pre-torqued with high pressure lube and 7/16-20 x 1.600" ARP 2000 bolts. Sets of 8 are matched within 2 grams overall. The rods weigh in at approx. 665 grams. Laser marked on the beam with the BTR logo, the rods are individually bagged (VCI) and sealed. They are boxed in sets of 8