Eagle Chrysler LM HEMI 58T Reluctor 4.080in Stroke 2.000in Rod Journals Forged 4340 Steel Crankshaft

Eagle is well-known for making strong engine components, and this forged 4340 steel crankshaft is a prime example of their commitment to durability. This particular crankshaft is built for Chrysler's modern HEMI engines and features a 4.080-inch stroke, which is a notable increase over stock and can help you achieve more displacement and power. It's designed with 2.000-inch rod journals, a common size for performance builds, and includes a 58-tooth reluctor wheel, essential for proper engine management system operation on these engines.

The construction starts with a non-twist forging of 4340 steel, a material chosen for its excellent strength and reliability under stress. Eagle further strengthens this crankshaft with .125-inch fillet radii, which are chamfered or narrowed to work with specific bearings, ensuring superior strength at these critical stress points. The surface is nitrided and then micropolished, a process that hardens the exterior for wear resistance while creating a smooth finish on the journals for reduced friction and improved bearing life. This level of attention to detail makes it suitable for demanding applications where consistent performance is key.

When installing this crankshaft, remember that the .125-inch fillet radii require the use of chamfered or narrowed bearings to ensure proper clearance and prevent binding. This part is intended for serious engine builds where reliability and strength are paramount. Ensure you have all necessary supporting components, such as appropriate pistons, connecting rods, and bearings, to complete your engine assembly.