Overview
The 1FZ billet crankshaft with a 105mm stroke, knife edge counterweights, and standard journal sizing is a robust performance component designed to enhance strength, durability, and throttle response in Toyota 1FZ-FE engines. Crafted from high-grade 4340 billet steel, it delivers excellent fatigue resistance and can handle high horsepower and torque levels, including boosted and racing setups. The 105mm stroke provides increased displacement for improved torque and power delivery. Its knife edge counterweights reduce rotational mass and windage, boosting engine efficiency and responsiveness. Precision CNC machining ensures tight tolerances for smooth bearing fitment, while internal balancing minimizes vibrations for stable operation at high RPMs. Equipped with advanced oiling passages, this crankshaft maintains optimal lubrication under extreme conditions. Multi-stage heat treatments like nitriding, shot peening, and stress relieving further enhance surface hardness and durability, making it an ideal choice for demanding street and competition engines.
Features
- 105mm stroke increases displacement for enhanced 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 tight tolerances and smooth operation
- Internally balanced to reduce 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 durability and surface hardness