The ZRP crankshaft for BMW M3 S14B25 is crafted from aerospace-grade 4340 solid billet steel, ensuring top-tier quality and performance. Designed with precision from extensive experience, this crankshaft enhances engine performance with strict inspections for superior quality and tight tolerances, ensuring perfect fitment. The crankshaft is fully balanced to 1gr.cm /- 0.1 using advanced Sunnen machines, with balance results included. It can also be used as a stroker on the M3 S14B23 engine.
Product Features and Design
- Aero-Wing counterweights for reduced windage and increased horsepower.
- Straight oil holes for improved oiling of the rod journals.
- Chamfered oil holes.
- Journal radius to disperse load stress.
- Tapered rod journals for weight reduction.
Technical Features of ZRP Crankshafts
- Full CNC machining.
- ION (Plasma) Nitride process for hardening.
- Multi-stage heat treatment.
- Shot peening for stress release.
- 100% Magna-fluxing for a flawless surface finish.
- Heat treatment for superior wear resistance.
- Micro-polishing for longer bearing life.
- Sonic tested and X-rayed for reliability.
Vehicle Compatibility
| Brand | Model | Generation / Chassis | Engine |
|---|---|---|---|
| BMW | M3 | - | S14B25 |
| BMW | M3 | - | S14B23 |
ZRP
ZRP is a specialist manufacturer of high-performance engine internals, particularly renowned for stroker kits for Japanese performance engines. ZRP stroker kits for Nissan GTR VR38DETT and SR20/RB engine families use billet steel crankshafts and high-strength rods engineered for extreme power in drag and circuit racing builds.
Official page: zrp-rods.com
Official page: zrp-rods.com
Billet Crankshaft for BMW M3 2.5L S14B25 C-BMW-002
2,312.13€
2,289.01€
Excl. VAT: 1,891.74€
Tags: Default Category|Engine and turbo|Forged crankshafts||Default Category|Engine and turbo,
| Brand | Model | Generation | Engine |
|---|---|---|---|
| BMW | M3 | - | S14B25 |
| BMW | M3 | - | S14B23 |

Official page: zrp-rods.com