Eagle Chevrolet LS 4340 4.125in Stroke 58 Tooth Reluctor Forged Crankshaft

If you're building a high-performance Chevrolet LS engine, this Eagle forged 4340 steel crankshaft is a solid foundation. It's designed with a 4.125-inch stroke, which is a common choice for increasing displacement and power in LS applications. This crankshaft also includes a 58-tooth reluctor wheel, essential for modern LS engine management systems to accurately read engine speed.

Eagle starts with a non-twist forging of 4340 steel, a material known for its strength and durability under stress. To further enhance its resilience, the fillet radii are .125-inch, which requires chamfered or narrowed bearings for proper fitment. The surface is nitrided and then micropolished, creating a hard, wear-resistant outer layer that also ensures smooth operation and longevity. This level of attention to detail makes it well-suited for engines that will be pushed hard.

This crankshaft fits a wide range of Chevrolet LS engines found in vehicles like the Cadillac CTS, Chevrolet Camaro, and Corvette, among others. It's a critical component for anyone looking to build a robust and powerful LS motor that can handle demanding use. Ensure you use the correct bearings and follow manufacturer guidelines for installation to get the most out of this well-built crankshaft.