Ford 4.6L 4340 Forged Crank - 3.750 Stroke

The EAGLE Ford 4.6L 4340 Forged Crank with 3.750 Stroke is a high-performance crankshaft engineered for Ford Modular engine builds requiring maximum durability and precision. Built from 4340 forged steel, this internally balanced crankshaft delivers the strength and reliability demanded by serious engine builders, performance enthusiasts, and race applications where stock components cannot handle increased horsepower and torque loads.

The 3.750-inch stroke specification is critical for engine displacement and torque characteristics in Ford Modular platforms. EAGLE's 4340 forged steel construction provides superior material strength compared to cast alternatives, allowing this crankshaft to withstand extreme combustion pressures and rotating forces typical in turbocharged, supercharged, or naturally aspirated performance builds. The internally balanced design integrates counterweights directly into the crankshaft, eliminating the need for separate balance weights and enabling cleaner engine bay packaging. The one-piece seal design ensures reliable oil containment and simplifies installation compared to multi-piece seal configurations.

This crankshaft is purpose-built for engine builders and performance shops constructing street, bracket racing, or high-output Ford Modular engines where OEM components are insufficient. Whether supporting a 5.0-liter, 5.4-liter, or custom-displacement build, the Ford 4340 forged crank provides the structural integrity and precision tolerances required for long-term reliability under sustained elevated RPM and boost conditions. Proper installation with compatible connecting rods, pistons, and fasteners is essential for optimal performance and longevity.