Eagle Chevy 454 4.250in 4140 Steel Crank 6.385in I-Beam Rods 15cc 4.310in Pistons Rotating Assembly

Built from strong 4140 forged steel, the crankshaft in this Eagle rotating assembly measures 4.250 inches, giving you a solid foundation for a high-performance Chevy 454 build. This assembly includes a set of 6.385-inch long I-beam connecting rods, also forged from 4140 steel, which are well-suited for demanding street and strip applications. The included pistons are 4.310 inches in bore size and feature a 15cc dish, designed to work with the crankshaft and rod combination to achieve a specific compression ratio, though the exact ratio will depend on your cylinder heads and gasket choice.

This is a complete rotating assembly, meaning all the core components you need to build the bottom end of your engine are included. The 4140 forged steel construction for both the crank and rods offers a significant strength improvement over cast components, making this assembly a popular choice for those looking to build a more powerful and durable engine. The I-beam design of the connecting rods is a proven performer, balancing strength with a reasonable weight for good engine response. Eagle is a well-known name in performance engine components, and this assembly reflects their focus on providing robust parts for serious engine builds.

When installing this rotating assembly, remember that proper balancing is crucial for engine longevity and smooth operation. While this assembly is balanced by Eagle, it's always a good idea to have it checked and finalized by a professional engine builder to match your specific application, especially if you're using different pistons or a different flywheel than what was originally specified. Please note that this assembly is not CARB approved and cannot be shipped to California due to emissions regulations.