Brian Crower BC5321LW Lightweight 100mm Stroke 4340 Billet Crankshaft for Toyota

Vehicle Fitment

• 2020-2025 Toyota Supra (A90/A91) with B58B30 engine
• 2020-2025 BMW Z4 M40i (G29) with B58B30 engine

Features

• Precision CNC machined from high-strength 4340 billet steel
• 100mm stroke for increased displacement and power potential
• Lightweight design reduces rotating mass for improved throttle response
• Shot peened and magnaflux inspected for enhanced durability
• Nitrided for superior wear resistance and longevity
• Fully profiled counterweights to minimize windage and oil resistance
• Designed for high-performance applications and high RPM use
• Compatible with standard B58B30 bearings

Specifications

• Stroke: 100mm
• Rod Journal Diameter: 50mm
• Main Journal Diameter: 55mm
• Material: 4340 Billet Steel
• Weight: 52 lbs
• Heat Treatment: Nitrided

Included Components

• 1x Brian Crower BC5321LW Lightweight Crankshaft

Product Description

The Brian Crower BC5321LW Lightweight Crankshaft is engineered for enthusiasts seeking to maximize the performance of their Toyota B58B30 engine. With a 100mm stroke, this crankshaft increases engine displacement, resulting in enhanced power and torque across the RPM range. Manufactured from high-strength 4340 billet steel, it undergoes a multi-step heat treatment process, including shot peening, magnaflux inspection, and nitriding, to ensure superior strength and durability.

Designed for high-performance applications, the BC5321LW features a lightweight design that reduces rotating mass, improving throttle response and allowing for higher RPM potential. The fully profiled counterweights minimize windage and oil resistance, further enhancing engine efficiency. This crankshaft is compatible with standard B58B30 bearings, making it an ideal choice for those looking to build a robust and reliable engine.

Please note that this crankshaft is designed for specific Toyota and BMW models equipped with the B58B30 engine. Ensure compatibility with your vehicle before purchase. Professional installation is recommended to achieve optimal performance.