Eagle Chrysler BB 8 Bolt Rear Flange 4.150in Stroke Forged 4340 Steel Crankshaft

When you're building a high-performance Chrysler big block engine that needs to handle serious power, a strong crankshaft is the foundation. This Eagle forged 4340 steel crankshaft is built for those demanding applications, offering a 4.150-inch stroke and an 8-bolt rear flange, making it a solid choice for your performance build.

Eagle starts with a non-twist forging of 4340 steel, known for its excellent strength and durability, which is then nitrided and micropolished for improved surface hardness and a smooth finish. The fillet radii are .125 inches, which are chamfered or narrowed to work with specific bearings, ensuring maximum strength in this critical area. This level of attention to detail means the crankshaft is well-built to withstand the stresses of a powerful engine.

This crankshaft is designed for Chrysler big block engines and features an 8-bolt rear flange, which is important for connecting to your flywheel or flexplate securely. If you're rebuilding your top end or looking for a robust rotating assembly, this Eagle crankshaft is a key component to consider for a reliable and powerful engine.