Eagle Chrysler 340 4.000in Stroke Forged 4340 Steel Crankshaft

This is the Eagle forged 4340 steel crankshaft, specifically designed for Chrysler 340 engines with a 4.000-inch stroke. If you're building a high-performance or heavy-duty engine for your classic Mopar, a strong crankshaft is the foundation of everything. This part is built to handle significant stress and power output, making it a solid choice for serious engine work.

Eagle starts with a non-twist forging of 4340 steel, which is known for its excellent strength and durability. This material is then treated with a nitride surface treatment and micropolished for improved wear resistance and a smooth finish. The fillet radii are .125 inches, which are chamfered or narrowed to work with specific bearings, ensuring maximum strength in those critical areas. This attention to detail in the forging and finishing process means you're getting a well-built component ready for demanding applications.

When installing this crankshaft, remember that the .125-inch fillet radii are chamfered, meaning you'll need to use bearings that are either chamfered or narrowed to match. This ensures proper clearance and prevents interference. This crankshaft is a key component for anyone looking to build a robust and powerful engine for their Chrysler 340.