I-Beam ZRP Connecting rods for BMW 5,0L 40V - S85B50 ZRP connecting rods for BMW are delivered in weighted sets with tolerances that only more expensive connecting rods offer. The ability to also select connecting rod bolts according to the 5,0L 40V - S85B50 engine provides the best performance per cost that we know when it comes to connecting rods. Specifications Part number: R-BMW-015-I Length: 140,72 Pin diameter: 21,00 Big-End bore: 56,00 Big-End width: 18,45 Weight (gram): 499 Bolt size: 3/8" Series: Standard Shape: I-Beam Additional Info: - No additional info ZRP connecting rods can handle more than 200HP per cylinder. Weighed with a maximum of 1g in weight difference per batch. All connecting rods are CNC machined. Max tolerance length: 0.001mm Max tolerance bearing housing: 0.0001mm. The bushings are made of AMCO18 material known as the absolute best-known material for bushings.