ZRP RODS – BMW 3.0L B58 I-BEAM CONNECTING RODS SET

Honda B18C H-Beam connecting rods are made from high-strength 4340 steel and are designed for high performance and extreme durability. This lightweight design combines lightweight performance with proven reliability at extended rpm. The bushings are made from aluminum-silicon-bronze and aluminum-silicon-bronze and feature a radial groove that serves as an oil reservoir. These connecting rods feature ribbed pin ends, which minimize pin end distortion under heavy inertial loads while saving excess weight. They are shot peened to relieve stress from the material and multi-stage heat treated to increase rigidity. Tight manufacturing tolerances ensure a perfect fit while optimizing oil clearances. Bending and twisting are strictly controlled. Each connecting rod includes ARP 2000 cap fasteners rated at 220,000 psi, with optional ARP L19 260,000 psi material available as an upgrade, and the entire kit comes with ARP moly and complete installation instructions.
Additional machiningCentering sleeves for a perfect fit and accurate reassemblyEmbossed cap with lip for improved big end integrity in extreme applicationsThrust face grooves for weight reductionTechnical features of ZRP connecting rodsTwo-piece forging for high strengthShot peening for improved fatigue lifeAluminum-silicon/bronze bushing with radial groove.Magnaflux Inspection ensures that the forged material consistency meets our high quality standardsDouble-rib caps for increased supportMulti-stage heat treatment for maximum strength, dimensional stability, and fatigue resistance.CNC-machined for superior tolerances, accurate to 0.0002″Center-to-center is held to a tolerance of 0.001″Finite Element Analysis (FEA) Computer-generated stress analysis of connecting rodsOptimal balance for weight-matched sets of ± 1 gramAdditional InformationEngine Number B18C1 / B18C2 / B18C5 / B18C7Application 1.8L B18Notes Recommended Use: Naturally AspiratedBolt Size 3/8”Shape H-BEAMLength (CC) 138.00Pin Size 9.00pmBig Bore 48.00Width BE 21.79Weight 486 gSet of 4Clamping Grade ARP2000Standard SeriesWeight 486 g