Hurricane Motorsport I-Beam Connecting rods for BMW M10 Hurricane Motorsport I-profile connecting rods can handle more than 200HP per cylinder. Comes weighed with a maximum of 1g in weight difference per batch. All connecting rods are CNC machined. Maximum tolerance length 0.001mm Maximum tolerance bearing housing 0.0001mm. The connecting rods are made of 4340 forged steel of the highest quality. The bushings are made of AMCO18 material known as the absolute best material for bushings. These connecting rods use 3/8 "connecting rod bolts for best strength and durability. The connecting rods are supplied with ARP L19 bolts in this kit. Tightening torque: ARP 2000 3/8 "= 61 Nm ARP L19 3/8" = 81 Nm ARP 625+ 3/8 "= Specifically per application Price per complete set. NOTE! General image Specifications Length: 135,00 Bolt size: 3/8" Shape: I-Beam