Description
Part Number: BC5020B
Brian Crower 4340 Billet Crankshaft – 92mm Stroke (Honda B18A/B18B/B20B)
Precision CNC-machined from 4340 billet steel to deliver maximum structural integrity and high-RPM performance for extreme Honda B-series engines.
Key Features
- ☑ Precision CNC machined from premium 4340 chromoly billet steel for extreme tensile strength.
- ☑ Extended 92mm stroke design engineered for Honda/Acura B18A, B18B, and B20B engine builds.
- ☑ Multi-step heat treatment including stress-relieving, shot-peening, and nitriding for maximum surface fatigue resistance.
- ☑ Fully profiled counterweights designed to minimise windage and oil drag in the crankcase.
- ☑ Magnaflux inspected to guarantee zero metallurgical defects or cracks prior to balancing.
Technical Specifications
| Manufacturer | Brian Crower (BC) |
|---|---|
| Part Number | BC5020B |
| Engine Compatibility | Honda / Acura B18A, B18B, B20B non-VTEC engines |
| Material | 4340 Billet Steel |
| Stroke | 92mm |
| Rod Journal Diameter | 45mm (Standard B-Series) |
| Heat Treatment & Finish | Nitrided, Shot-Peened & Stress Relieved |
What’s Included in the Box
- 1x Brian Crower BC5020B 4340 Billet 92mm Stroke Crankshaft
- Quality Control & Inspection Documentation
Engineered for high-boost, high-RPM motorsport builds where OEM cast or standard forged cranks reach their limit, the Brian Crower BC5020B billet crankshaft offers supreme durability and race-proven dependability. Every Brian Crower component is held to rigorous manufacturing tolerances. Order yours from JP Racing today for fast UK shipping and expert technical support from dedicated motorsport specialists.




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