Eagle Ford 351W 2.750in Mains Rotating Assemblies 4.125in Bore 4in Stroke 2.1in Rod Flat Top Pistons

If you're building a high-performance Ford 351W engine for serious street or track use, a strong rotating assembly is the heart of your build. This Eagle Competition Rotating Assembly is designed to handle the demands of boosted or nitrous-fed applications, giving you a solid foundation for significant power gains. It's built around a forged 4340 steel crankshaft with a 4.000-inch stroke, which increases displacement and potential power output.

Eagle uses robust components throughout this assembly. The 4340 forged steel crankshaft is known for its strength and durability under high stress. Paired with this are 6.250-inch H-beam connecting rods, which are also forged from 4340 steel and secured with 7/16-inch ARP 8740 bolts for reliable performance. For the pistons, you get Mahle 4.125-inch flat-top pistons made from 4032 forged aluminum, featuring a -6.6cc dish and coming with plasma-moly file-fit rings. This combination is well-suited for builds aiming for substantial horsepower, including those using turbochargers, superchargers, or nitrous oxide systems. King XP rod and main bearings are included to ensure smooth operation and proper lubrication for the crankshaft and connecting rods.

This assembly is intended for competition use and is not CARB approved, meaning it cannot be shipped to California. It's a comprehensive package for anyone looking to build a powerful and reliable engine from the ground up. Ensure you have all necessary supporting components, such as a compatible block, cylinder heads, camshaft, and a proper balancing procedure, to complete your engine build.