Eagle Chevy 427/454 Balanced Rotating Assembly

This is a balanced rotating assembly from Eagle, specifically built for Chevy 427 and 454 big-block engines. It's designed for street applications that run on pump gas and are naturally aspirated. If you're rebuilding the heart of your classic Chevy or performance build, a balanced rotating assembly like this ensures smoother operation and better power delivery right from the start.

Inside this assembly, you'll find a 4.250-inch cast crankshaft, paired with 6.385-inch I-beam connecting rods. These rods are secured with 7/16-inch ARP 8740 bolts, known for their strength and reliability in performance builds. The pistons are forged 4032 aluminum from Mahle, featuring an 18cc dome and a 4.320-inch bore size, which are ideal for pump gas compression ratios. They come with plasma-moly file-fit rings, giving you flexibility during installation to achieve a perfect seal. For the bottom end, King rod and main bearings are included, offering solid lubrication and wear protection. This assembly also comes with a Pioneer damper and a 168-tooth flexplate, so you have key components ready for installation.

Because this assembly is balanced from the factory, it saves you a significant step and cost in your engine build. This means less time at the machine shop and a more consistent starting point for your engine's internal balance. Please 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 break-in procedures.