Eagle Honda F20C 4340 Billet Crankshaft

This is an Eagle 4340 Billet Crankshaft specifically made for the Honda F20C engine. If you're building a high-performance F20C and need a crankshaft that can handle serious power, this is a solid choice. It's forged from 4340 steel, which is known for its strength and durability, making it a great foundation for a boosted or race-focused build.

Eagle starts with a solid billet of 4340 steel and then machines it to precise specifications, including a 3.799-inch stroke. To further enhance its resilience, this crankshaft receives a nitrided surface treatment. Nitriding hardens the surface, making it more resistant to wear and fatigue, which is crucial under high stress. It's also micropolished, a process that creates an incredibly smooth surface finish. This smoothness reduces friction and oiling issues, contributing to overall engine longevity and performance. The fillet radii are .125 inches, which are designed for superior strength. Because of these larger fillet radii, you will need to use chamfered or narrowed bearings with this crankshaft.

When you're investing in a performance engine build, the crankshaft is one of the most critical components. This Eagle billet crankshaft offers a well-built, robust option designed to withstand the demands of a powerful F20C engine. Ensure you have the correct chamfered or narrowed bearings on hand before installation to properly accommodate the .125" fillet radii.