Eagle Chevy LS2/LS3 3.900in Crank 58 Tth Reluctor 6.125in H-Beam 4.070in Pistons Rotating Assembly

This is the Eagle Chevy LS2/LS3 3.900-inch stroke rotating assembly, designed for serious performance builds. It includes a 58-tooth reluctor crank, 6.125-inch H-beam connecting rods, and 4.070-inch pistons, making it a solid foundation for LS2 and LS3 engines pushing the limits. If you're planning on significant power increases, especially with forced induction or nitrous, a well-balanced rotating assembly like this is crucial for reliability and performance.

Eagle has put together a well-built package here. The crankshaft features a 3.900-inch stroke, which, combined with the 4.070-inch bore pistons, gives you a displacement of approximately 6.2 liters (378 cubic inches). The 6.125-inch H-beam connecting rods are strong and commonly used in high-horsepower applications, offering a good balance of strength and weight. The assembly comes balanced, which is a critical step to ensure smooth operation and longevity at high RPMs. This kit is intended for racing use and is not CARB approved, meaning it cannot be shipped to California.

When building a high-performance engine, the rotating assembly is the heart of the operation. Ensuring you have strong, precisely matched components is key. This Eagle assembly provides a robust starting point for your LS2 or LS3 build, ready to handle the demands of competition.