Eagle Chevy LS1 58 Tooth Reluctor 4140 Forged Crankshaft

This is an Eagle 4140 forged steel crankshaft specifically designed for Chevy LS engines, featuring a 4.000-inch stroke and a 58-tooth reluctor wheel. It's built with a non-twist forging process and .125-inch fillet radii, which are crucial for handling the stresses of competition use. The crankshaft also receives a nitrided surface treatment and is micropolished for improved durability and performance.

The use of 4140 forged steel makes this crankshaft exceptionally strong, capable of withstanding the higher demands of performance applications. The .125-inch fillet radii are a notable detail; they require the use of chamfered or narrowed bearings, so be sure to account for this during your build. This crankshaft is intended for competition use, meaning it's engineered for engines that will be pushed hard and often.

When building a high-performance LS engine, a strong crankshaft is the foundation. This Eagle crankshaft offers a solid starting point for builds aiming for increased power and reliability under demanding conditions. Remember to consult your engine builder or refer to manufacturer specifications for proper installation and bearing selection to ensure optimal performance and longevity.