Forged 4340 steel crankshaft has been tested and proven to excel in engines producing 1,000 horsepower and above. The premium 4340 aircraft quality steel with vacuum degassed forging process creates a clean and pure crankshaft. The state-of-the-art CNC machine centers provide superior tolerance.

This 4340 crankshaft incorporates these features:
- Computer designed counterweight to reduce main bearing loads.
- CNC machined to provide superior tolerance and journals micro polished to 5 RMS.
- Generous 0.125" journal radii to disperse stress under high loads.
- Each crankshaft has been visually inspected, X-rayed, magnafluxed, and ultrasonic tested to ensure perfection.
- All cranks are heavier at counter weight for easier balancing with various applications.
- Journal surfaces are treated with plasma gas nitrite to HRC60 hardness for superior wear resistance.
- Shot peened for 100% stress relief.
- 6 bolt Flange