Overview
The 1FZ billet crankshaft with a 108mm stroke, knife edge counterweights, and standard journal sizing is a premium, high-strength component designed for performance-oriented Toyota 1FZ-FE engine builds. Crafted from durable 4340 billet steel, it provides excellent fatigue resistance and durability to withstand high horsepower and torque demands, including boosted and racing conditions. The extended 108mm stroke increases engine displacement, resulting in greater torque and power potential. Knife edge counterweights reduce rotational mass and windage losses, improving throttle response and overall engine efficiency. Precision CNC machining ensures tight tolerances for smooth bearing fitment, while internal balancing minimizes vibrations at high RPM. Advanced oiling passages optimize lubrication under extreme loads, and multi-stage heat treatments such as nitriding, shot peening, and stress relief enhance surface hardness and structural integrity. This crankshaft is ideal for serious street or competition engines requiring strength, reliability, and enhanced performance.
Features
- 108mm stroke increases engine displacement for higher torque and power
- 4340 billet steel construction offers superior strength and fatigue resistance
- Knife edge counterweights reduce rotational mass and windage losses for improved throttle response
- Standard journal sizing ensures compatibility with OEM rods and bearings
- Precision CNC machining guarantees exact tolerances and smooth operation
- Internally balanced to minimize vibrations and enhance high-RPM stability
- Advanced oiling passages provide optimal lubrication under extreme conditions
- Multi-stage heat treatments including nitriding, shot peening, and stress relief improve surface hardness and durability