Eagle Chevrolet LS 4340 4.375in Stroke 58 Tooth Reluctor Forged Crankshaft

If you're building a high-performance Chevrolet LS engine and need a crankshaft that can handle serious power, this Eagle forged 4340 steel crankshaft is a solid choice. It's designed for builds where durability and strength are paramount, offering a significant upgrade over stock components for demanding applications. This crankshaft features a 4.375-inch stroke, which is longer than stock, allowing for increased displacement and potential for more horsepower when paired with the right components.

Eagle starts with a non-twist forging of 4340 steel, a material known for its excellent strength and reliability under stress. They've also incorporated .125-inch fillet radii, which are smaller than standard, requiring chamfered or narrowed bearings. This design detail enhances overall strength by reducing stress concentrations. The crankshaft is then nitrided for surface hardness and micropolished to ensure smooth operation and longevity. It also comes with a 58-tooth reluctor wheel, essential for proper engine management on many LS applications.

This crankshaft is built to last and is a popular choice for engine builders looking for a robust foundation for their LS project. It fits a wide range of Chevrolet LS engines found in vehicles like the Cadillac CTS, Chevrolet Camaro, and Corvette, among others. Ensure you use the correct bearings and have the necessary machine work done to accommodate the narrowed fillet radii for a successful installation.