Eagle Ford 351W 4.170in Crank 6.250in I-Beam Rods -6cc Flat Top 4.125in Pistons Rotating Assembly

Starting with a forged 4340 steel crankshaft measuring 4.170 inches, this Eagle Pro Street rotating assembly is built for serious performance in naturally-aspirated racing applications. The crankshaft is paired with 6.250-inch long I-beam connecting rods, also forged from strong 4340 steel, and secured with 7/16-inch ARP 8740 bolts. This robust combination is designed to handle the stresses of high-RPM operation.

The assembly includes forged 4032 aluminum pistons from Mahle, featuring a -6cc flat top design and a 4.125-inch bore. These pistons are matched with plasma-moly file-fit piston rings, allowing for precise gap setting to optimize sealing and performance. For the bottom end, King XP series rod and main bearings are included, known for their durability and ability to maintain oil pressure under demanding conditions. This complete package is a well-built foundation for a high-performance Ford 351W engine build.

This rotating assembly is intended for racing use and is not CARB approved, meaning it cannot be shipped to California. Please consult your local regulations regarding emissions compliance for your specific build.