Eagle Nissan SR20 4340 Billet Crankshaft

This listing is for a single Eagle 4340 Billet Steel Crankshaft specifically made for Nissan SR20 engines. It features a 3.583-inch stroke and comes with knife-edged counterweights. This crankshaft is constructed from forged 4340 billet steel, a strong material known for its durability under high stress.

The knife-edged counterweights are designed to significantly reduce rotating weight within the engine. This can lead to improved engine response and potentially higher RPM capabilities. The crankshaft also includes .125-inch fillet radii, which are chamfered for superior strength. Because of these enhanced radii, you will need to use chamfered or narrowed bearings when installing this crankshaft.

For added durability and wear resistance, this Eagle crankshaft undergoes a nitriding surface treatment and a micropolish finish. Nitriding hardens the surface of the steel, making it more resistant to wear and fatigue, while micropolishing ensures a smooth finish for optimal bearing contact and reduced friction. This component is built for engines that experience significant stress and demand high performance.