4340 Steel Forged Crankshaft, 4.050" Stroke

The Eagle Specialty Products CRS-439240506125 is a forged 4340 steel crankshaft engineered for high-performance, demanding applications. Its robust construction includes a non-twist forging process, .125" fillet radiuses for enhanced strength, and a nitrided surface that is micropolished to under 2 ra for optimal performance and durability. This crankshaft features a 4.050-inch engine stroke and internal engine balance, making it suitable for significant power output. It comes equipped with a 32-tooth reluctor wheel and is designed to work with a 1-piece rear main seal. The specifications include a 2.000-inch rod journal diameter and a 2.559-inch main journal diameter. Installation of this crankshaft requires narrow bearings, which are not included, nor are the main or rod bearings. The crankshaft is rated to support up to 1500 horsepower, indicating its suitability for serious engine builds. It features a standard crankshaft snout style for straightforward integration into compatible engine setups.