Eagle Chevy Pro Street 454 Rotating Assembly 4140 Crankshaft w/4340 I Beam Rods & Flat Top Pistons

Eagle is well-known for building strong internal engine components, and their Pro Street Rotating Assemblies are a prime example of that expertise. This particular assembly is designed for Chevy 454 engines and is specifically geared towards naturally-aspirated racing applications. If you're looking to build a powerful street or strip engine that doesn't rely on forced induction, this rotating assembly is a solid foundation.

At the heart of this assembly is a 4.000-inch forged 4340 crankshaft, chosen for its strength and ability to handle the stresses of high-RPM operation. Paired with this are 6.135-inch 4340 I-beam connecting rods, which are also well-suited for demanding use. These rods come equipped with 7/16-inch ARP 8740 bolts, a name you can trust for reliable clamping force. The pistons are forged 4032 ICON flat tops, featuring a -3cc dish and a 4.280-inch bore size, designed to work with the crankshaft and rods for optimal compression and performance in a naturally-aspirated setup. This assembly also includes plasma-moly file-fit rings, allowing for precise ring gap adjustment to match your specific build and engine clearances. To ensure smooth operation and durability, King XP rod and main bearings are included, offering excellent load-carrying capacity.

When assembling this rotating group, remember that the plasma-moly rings are file-fit, meaning you'll need to carefully set the gap according to your engine's intended use and bore size. This level of adjustability is crucial for maximizing performance and engine longevity in a racing environment. Please note that this assembly is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's detailed installation instructions for proper assembly and break-in procedures.