Eagle Ford 351W 4.170in Crank 6.250in I-Beam Rods -16cc 4.155in Pistons Balanced Assembly

This is a balanced rotating assembly from Eagle, specifically built for Ford 351W engines. It's designed for naturally-aspirated racing applications, meaning it's intended for engines that don't use a turbocharger or supercharger to force more air in. This assembly includes a forged 4340 steel crankshaft with a 4.170-inch stroke, 6.250-inch long 4340 I-beam connecting rods with 7/16-inch ARP 8740 bolts, and forged 4032 Mahle pistons with an inverted dome design to achieve a -16cc volume. It also comes with plasma-moly file-fit piston rings and King XP rod and main bearings.

The use of forged 4340 steel for both the crankshaft and connecting rods means these components are well-built to handle the stresses of performance engines. Forged materials are stronger and more durable than cast alternatives, making them a solid choice for racing. The included Mahle pistons are also forged, offering improved strength and lighter weight compared to cast pistons. The -16cc inverted dome design is a specific feature that helps achieve a desired compression ratio when paired with compatible cylinder heads. The file-fit piston rings give you the flexibility to set the correct gap for your specific engine build, which is crucial for proper sealing and performance. King XP bearings are known for their robust construction and ability to handle higher loads.

This assembly comes balanced from Eagle, which is a critical step for any performance engine build. Balancing the rotating assembly (crankshaft, connecting rods, pistons, rings, bearings, and harmonic balancer/flywheel) reduces vibration and stress on the engine's internal components, leading to a smoother running engine and potentially longer life. This balanced assembly is ready to be installed into your Ford 351W block, saving you time and ensuring a critical aspect of the build is handled correctly. Please note that this assembly is not CARB approved and cannot be shipped to California.