Eagle Chrysler RB 4340 Crank 4.5in Stroke 2.2in Rod Pin 8 Bolt Flange

Eagle is well-known for building robust rotating assemblies, and this Chrysler RB 4340 forged steel crankshaft is a prime example of their commitment to strength. If you're working on a high-performance Chrysler RB engine, like the 440, this crankshaft is designed to handle serious power. It features a 4.500-inch stroke and 2.200-inch rod journals, giving you the foundation for a potent powerplant.

This crankshaft starts with a non-twist forging of 4340 steel, which is a strong material chosen for its durability under stress. Eagle further strengthens it with .125-inch fillet radii, which are chamfered to accept narrowed or chamfered bearings. The surface is nitrided and then micropolished, a process that hardens the journals for improved wear resistance and ensures a smooth finish for optimal bearing performance. The 8-bolt rear flange is ready for your specific flywheel or flexplate setup.

When building a high-output engine, the crankshaft is a critical component. This Eagle crankshaft is built to withstand the rigors of demanding applications, offering a solid foundation for your custom build. Ensure you have the correct narrow or chamfered bearings to match the fillet radii on this crank for proper installation and longevity.