Eagle Chevrolet LS 4340 4.000in Stroke 58 Tooth Reluctor Forged Crankshaft

If you're rebuilding a high-performance Chevrolet LS engine, a strong crankshaft is the heart of the operation. This forged 4340 steel crankshaft from Eagle is built to handle serious power, offering a 4.000-inch stroke for increased displacement and a 58-tooth reluctor wheel for precise engine management. It's designed to fit a wide range of GM LS applications, including popular models like the Chevrolet Corvette, Camaro, and Cadillac CTS.

Eagle starts with a non-twist forging of 4340 steel, a material known for its strength and durability under stress. The fillet radii are .125 inches, which are chamfered or narrowed to work with specific bearings, providing superior strength where it counts. To further enhance its resilience, the crankshaft receives a nitrided surface treatment and a micropolish finish. This combination helps resist wear and ensures smooth operation, making it a solid choice for demanding builds where reliability is paramount.

This crankshaft includes the 58-tooth reluctor wheel, which is essential for modern engine control modules to accurately read engine speed and position. When building a powerful LS engine, selecting a crankshaft that can withstand the increased forces is critical. This Eagle forged crankshaft is engineered to meet those challenges, providing a robust foundation for your project.