Eagle Chevy Big Block Rotating Assembly with 4.390in Bore 4.500in Stroke +38cc Dome

Eagle is a well-known name in performance engine building, and they're known for making strong rotating assemblies that hold up to serious use. This particular Chevy Big Block rotating assembly is designed for demanding applications, including racing with nitrous or forced induction. It’s a complete package to get your engine project moving forward with a solid foundation.

At the heart of this assembly is a 4.500-inch stroke forged 4340 steel crankshaft. This material and design are chosen for their strength and ability to handle the stresses of high-performance engines. Paired with the crank are 6.700-inch H-beam connecting rods, which are also forged from 4340 steel and secured with 7/16-inch ARP 8740 bolts. These rods are built to withstand significant loads and RPMs. The pistons are forged 4032 aluminum with a -38cc inverted dome and a 4.390-inch bore, designed to work with the crank and rods for a specific compression ratio suitable for boosted or nitrous applications. They come with plasma-moly file-fit rings, giving you the flexibility to achieve a precise fit in your cylinders for optimal sealing and performance. To complete the package, King XP rod and main bearings are included, offering robust lubrication and wear protection for critical rotating components.

This assembly is intended for competition use and is not CARB approved, meaning it cannot be shipped to California. It's a comprehensive kit for builders looking to assemble a powerful Chevy Big Block engine for racing or other high-performance needs.