Eagle Ford 351W Block Pro Street Rotating Assembly - 6.25in I-Beam +.030in Bore (Unbalanced)

If you're building a Ford 351W for naturally-aspirated racing, a strong rotating assembly is the heart of the operation. This Eagle Pro Street Rotating Assembly is designed to handle the demands of the track, providing a solid foundation for your performance engine.

This assembly starts with a 4.000-inch forged 4340 steel crankshaft, known for its strength and durability under high stress. Paired with it are 6.250-inch I-beam connecting rods, also made from robust 4340 steel, and secured with 7/16-inch ARP 8740 bolts for reliable performance. The pistons are forged 4032 Mahle units with a -20cc inverted dome, designed for a 4.030-inch bore, and come with plasma-moly file-fit rings. To top it off, King XP rod and main bearings are included, offering excellent wear resistance and performance. This is an unbalanced assembly, meaning it will require balancing by a professional machine shop to match your specific application.

It's important to note that this assembly is not CARB approved and cannot be shipped to California. Proper balancing by a qualified shop is a critical step before installation to ensure the longevity and smooth operation of your engine.