Eagle Ford 351W 4.000in Crank 6.200in H-Beam -15.8cc Inv Dome 4.040in Pistons Rotating Assembly

This is the Eagle Ford 351W rotating assembly, built for serious engine work. It features a 4.000-inch stroke crankshaft, 6.200-inch H-beam connecting rods, and 4.040-inch bore pistons with a -15.8cc inverted dome. This assembly is designed to handle increased power and stress, making it a solid foundation for a performance or rebuilt 351 Windsor engine.

The heart of this assembly is the Eagle 4340 forged steel crankshaft. Forged cranks are significantly stronger than cast cranks, offering better resistance to bending and fatigue under high loads. Paired with the Eagle 4340 forged H-beam connecting rods, known for their strength and durability, this setup is built to last. The H-beam design offers a good strength-to-weight ratio, making them a popular choice for performance builds. The included pistons are designed for a 4.040-inch bore and feature a -15.8cc inverted dome. This dome shape is often used to achieve specific compression ratios, typically in the mid-to-high range depending on the cylinder head volume. This assembly is a well-built package that brings together critical engine components from a reputable manufacturer.

When undertaking an engine build of this caliber, careful attention to balancing is crucial. While this assembly includes the core rotating components, it's recommended to have the entire rotating assembly (crank, rods, pistons, rings, bearings, and balancer/flexplate) professionally balanced to ensure smooth operation and longevity. Also, remember that this assembly is not CARB approved and cannot be shipped to California. Always consult your engine builder and manufacturer's specifications for proper installation and break-in procedures.