Eagle Chevy 427 3.766in Crank 6.135in H-Beam 41cc Dome 4.320in Pistons Balanced Assembly

Starting with a forged 4340 steel crankshaft featuring a 3.766-inch stroke is key to building a robust Chevy 427 engine. This Eagle Pro Street rotating assembly is designed for naturally-aspirated racing applications where reliable power is essential. The assembly includes 6.135-inch H-beam connecting rods, known for their strength and durability under high stress, secured with 7/16-inch ARP 8740 bolts. These components are balanced as a complete unit, which is crucial for reducing engine vibration and ensuring smooth operation at higher RPMs.

The pistons are forged 4032 aluminum from ICON, featuring a 4.320-inch bore size and a 41cc dome. This dome shape is designed to achieve a specific compression ratio when paired with the correct cylinder heads, making it suitable for naturally-aspirated performance builds. The assembly also comes with plasma-moly file-fit piston rings, allowing for precise gap setting to match your engine's bore and intended use, which helps optimize sealing and performance. King XP rod and main bearings are included, offering advanced wear protection and reduced friction for critical rotating components.

This balanced rotating assembly is a solid foundation for a high-performance Chevy 427 engine. It's important to note that this assembly is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and torque specifications to ensure optimal performance and longevity.