Eagle Honda K20/K24 (w/B18 Rod Pin) 3.622in Stroke 1.771in Rod Journals Billet 4340 Steel Crankshaft

This is the Eagle Billet 4340 Steel Crankshaft, part number 3K2036221772, designed for Honda K20 and K24 engines. If you're building a high-performance Honda engine, a strong crankshaft is the foundation of everything. This piece is built to handle the stresses of serious engine work, offering a 3.622-inch stroke and 1.771-inch rod journals, which are key dimensions for tuning engine displacement and performance characteristics.

Eagle starts with a solid billet of 4340 steel, a material known for its strength and durability, making it a popular choice for performance crankshafts. They've incorporated .125-inch fillet radii, which are slightly larger than standard. This means you'll need to use chamfered or narrowed bearings to ensure proper clearance and oil flow. The crankshaft also receives a nitrided surface treatment and a micropolished finish. Nitriding hardens the surface, increasing wear resistance, while the micropolish ensures smooth operation and optimal bearing life. This level of attention to detail means the crankshaft is well-built for longevity and consistent performance under demanding conditions.

When you're investing in a performance crankshaft like this, it's important to ensure all supporting components are up to the task. This crankshaft is a critical piece for anyone looking to build a robust K-series engine for racing, track days, or spirited street driving. Remember to consult your engine builder or service manual for specific installation requirements and recommended bearing types.