Eagle Chrysler BB 8 Bolt Rear Flange 4.375in Stroke 2.200in Rod Journal Forged 4340 Steel Crankshaft

When you're building a serious performance engine for your Chrysler big block, the crankshaft is the heart of it all. This Eagle forged 4340 steel crankshaft is built to handle the stress of high-RPM operation and significant power output. It's designed with a 4.375-inch stroke and 2.200-inch rod journals, making it a solid choice for performance builds where increased displacement and power are the goals.

Eagle starts with a non-twist forging of 4340 steel, which is known for its strength and durability. To further enhance its robustness, this crankshaft features a nitrided surface treatment and a micropolished finish. The fillet radii are .125 inches, which are designed for superior strength, meaning you'll need chamfered or narrowed bearings to properly fit this crank. This attention to detail in its construction means it's ready for demanding applications where reliability is paramount.

This crankshaft features an 8-bolt rear flange, which is important to consider when selecting your flywheel or flexplate. If you're pushing the limits of your Chrysler big block and need a crankshaft that can keep up, this Eagle forged unit is a well-built option that offers a strong foundation for your performance engine.