Upgrade your Toyota 2JZ engine's performance with Dart Machinery's 4340 billet crankshafts, meticulously crafted for precision and endurance. Available in 86mm and 90mm strokes, these crankshafts boast fully counterweighted 4340 billet steel construction, minimizing vibrations and enhancing balance. The one-piece rear seal design simplifies assembly and fortifies the engine's structure. With 8-bolt flanges ensuring stability under stress, these crankshafts offer durability for high-performance applications. The highly polished journals reduce friction, promoting smoother operation, while the precision machined radius guarantees consistent performance. Dart Machinery's commitment to quality shines through in every detail, making these crankshafts the ideal choice for those seeking unparalleled reliability and efficiency in the Toyota 2JZ engine platform.