Additional information

Engine Nr S58B30

Application 3.0L S58

Notes Non-Tapered Pin End / Straight PE

Bolt Size 3/8"

Shape I-Beam

Length (CC) 151.10

Pin Size 23.00

Big Bore 53.60

B.E Width 22.40

Set of 6

Fastener Grade ARP2000

Series Standard Series

The I-Beam Connecting rods for BMW S58B30 are built from the finest raw materials, 4340 high tensile steel with a specially optimized shape for high performance and extreme durability. These feature “straight cut” pin ends for increased durability, so they can only be used with aftermarket pistons. The bushings are made from AMPCO 18 material for excellent wear and fatigue resistance and have radial grooves acting as an oil reservoir. They are shot peened to relieve stress from the material and multi-stage heat treated to increase rigidity. The tight tolerances in the production process ensure a perfect fitment while optimizing the oil clearances. Bend and twist are tightly controlled. Each rod includes ARP 2000 cap fasteners rated at 220,000psi, optional ARP L19 material 260.00psi available as an upgrade, and the whole kit is supplied with ARP moly and full fitting instructions.

Additional machining processes

“Straight Cut” Pin End – Suitable for aftermarket pistons

Dowel sleeves for perfect fit and accurate re-assembling

Lipped Cap Relief for improved big-end integrity at extreme application

Grooves in Thrust Face for weight reduction

Technical Features of ZRP Connecting Rods

I-Beam Shape for extra rigidity

Two-Piece forging for great strength

Shot Peening for improved fatigue life

Magnaflux Inspection guarantees that the consistency of the forged material meets our high-quality standard

Double ribbed caps for added support

Multi Stage Heat Treatment for maximum strength, dimensional stability, and fatigue life.

CNC machining for superior tolerances, precise as much as 0.0002″

Center to center is maintained under .001″ tolerance

Finite Element Analysis (FEA) Computer generated stress analysis of con rods

Optimal balancing for weight matched sets of ± 1gram