Brian Crower GR Supra B58 Lightweight Crankshaft

Overview

The Brian Crower Lightweight Crankshaft for the Toyota B58B30 engine is engineered for extreme horsepower, high RPM stability, and demanding performance applications. Manufactured from aerospace-grade 4340 billet steel, these crankshafts are precision CNC-machined, heat-treated, and fully inspected to meet the needs of high-boost street builds and competitive racing engines.

Designed as a direct-fit upgrade for the B58 platform, this crankshaft is available in two stroke options, allowing builders to choose between a reinforced stock-stroke setup or a torque-focused stroker configuration.

Available Stroke Options

• BC5320LW – 94.6 mm Stroke (Lightweight / Stock-Stroke Replacement)
  
  • Ideal for high-power builds retaining near-OEM displacement. This option provides increased strength, improved balance, and enhanced durability over the factory crankshaft while maintaining factory geometry.
• BC5321LW – 100 mm Stroke (Lightweight Stroker Crankshaft)
  
  • Designed for stroker engine builds seeking increased displacement and torque output. The 100 mm stroke is commonly used in 3.2L+ B58 configurations and pairs well with upgraded rods and custom pistons.

Key Features (Both Options)

• CNC-machined from 4340 billet steel

• Lightweight design with fully profiled counterweights

• Heat-treated, stress-relieved, shot-peened, and nitrided

• Magnaflux-inspected for structural integrity

• Gun-drilled oil passages for improved lubrication

• Designed for high-boost and high-RPM applications

• Precision balanced for performance engine builds

Specifications