Eagle Chevrolet 350/305 1pc Rear Seal 3.75in Stroke Forged 4340 Steel Crankshaft

When you're building or rebuilding a Chevrolet 350 or 305 engine, especially for a 1993-1997 Camaro, Firebird, or other compatible GM vehicle, a strong crankshaft is the heart of the operation. This Eagle forged 4340 steel crankshaft is built to handle serious power, featuring a 3.75-inch stroke and a 1-piece rear main seal design. It's a solid foundation for performance builds where reliability is key.

Eagle starts with a non-twist forging of 4340 steel, a material known for its excellent strength and durability. This forging process helps ensure the crankshaft resists twisting under high loads. The fillet radii are .125 inches, which are chamfered or narrowed to work with specific bearings, and the entire piece is nitrided and micropolished. This surface treatment hardens the crank and provides a smooth finish, which is crucial for reducing friction and wear on your bearings, ultimately contributing to a longer engine life.

This crankshaft is designed for demanding applications, meaning it's a great choice if you're looking to extract more power from your engine. Because it's a 1-piece rear main seal design, it's important to ensure your engine block is set up for this configuration. If you're aiming for a robust and reliable engine build, this Eagle crankshaft offers a well-built component to get you there.