This is a forged crank with a 100mm (2.3L) Stroke. This is an excellent upgrade to the factory crank that will change your displacement depending on rod length and piston selection in a 7-Bolt 4G63T. Eagle "ESP" 4340 Steel Crankshafts are one of the most cost effective crank solutions on the market. They are forged in a non-twist forging and undergo a multi-stage heat treatment process as wel as stress relieving, shot peening, and nitriding. They are magnafluxed and sonic tested to insure quality. The crank journals are micropolished to a 3 or better RA Surface. Eagle advertises that this crank can handle 1500hp.