Eagle Ford 351W 4.170in Crank 2.750in Mains 6.250in H-Beam -16cc 4.155in Pistons Balanced Assembly

Starting with a forged 4340 steel crankshaft featuring a 4.170-inch stroke and 2.750-inch main journals, this Eagle rotating assembly is built for serious performance. It’s designed to handle the demands of racing, including applications using nitrous or forced induction. The assembly includes 6.250-inch H-beam connecting rods, which are strong and reliable for high-RPM use. These rods are secured with 7/16-inch ARP 8740 bolts, known for their strength and consistency under stress.

The pistons are forged 4032 aluminum from Mahle, featuring an inverted dome design with a -16cc volume and a 4.155-inch bore. This piston design is crucial for achieving specific compression ratios when paired with the right cylinder heads. The assembly also comes with plasma-moly file-fit piston rings, allowing for precise ring gap adjustment to optimize sealing and performance. King XP rod and main bearings are included, offering robust lubrication and wear resistance for the critical rotating components.

This assembly is balanced from the factory, saving you time and ensuring proper engine operation. It's important to note that this part is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and break-in procedures.