Description
Part Number: BC5230
Brian Crower Nissan RB30 4340 Billet Crankshaft (90mm Stroke)
Engineered for extreme horsepower and high-boost Nissan RB30 engine builds, featuring 4340 aerospace-grade billet steel construction and precision CNC finishing.
Key Features & Technical Advantages
- ☑ Manufactured from high-tensile 4340 aerospace-grade billet steel for superior strength and fatigue resistance.
- ☑ 90mm precision stroke designed to optimize engine displacement and torque delivery.
- ☑ 5-axis CNC machined with fully profiled counterweights to reduce crankcase windage and oil drag.
- ☑ Multi-step heat treatment including stress relieving, shot peening, magnaflux inspection, and nitriding.
- ☑ Gun-drilled with tear-dropped oil holes and micro-polished journals for maximum lubrication under high RPM.
Technical Specifications
| Manufacturer | Brian Crower (BC) |
|---|---|
| Part Number | BC5230 |
| Engine Fitment | Nissan RB30 / RB26/30 Hybrids |
| Material | 4340 Billet Steel |
| Stroke | 90mm |
| Rod Journal Diameter | 49.96mm |
| Main Journal Diameter | 54.95mm |
| Approximate Weight | 62.0 lbs (28.1 kg) |
What’s Included in the Box
- 1x Brian Crower BC5230 4340 Billet Steel Crankshaft (90mm Stroke for Nissan RB30)
- Factory Quality Assurance & Inspection Certificate
Brian Crower internal engine components are trusted globally in elite motorsport for their uncompromised strength and meticulous tolerances. At JP Racing, we supply authentic Brian Crower parts backed by full technical expertise and fast UK shipping to ensure your competition or high-performance street engine performs at its absolute peak.
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