Eagle Chevy 409 4.000in Crank 6.135in H-Beam +.365in Edelbrock Dome 4.372in Piston Balanced Assembly

This balanced rotating assembly from Eagle is built for Chevy 409 engines. What you get in this package is a precisely matched set of components designed to work together as a unit. It includes a 4.000-inch stroke crankshaft, 6.135-inch H-beam connecting rods, and 4.372-inch Edelbrock dome pistons with a +.365-inch dome height. This assembly is balanced, meaning the weight of the crankshaft, rods, pistons, and any included bearings or pins are carefully accounted for to reduce vibration and improve engine smoothness.

The H-beam connecting rods are known for their strength and rigidity, making them a solid choice for performance applications where stock rods might not hold up. The Edelbrock dome pistons are designed to work with specific cylinder head volumes to achieve a desired compression ratio, and the +.365-inch dome height is a notable feature for tuning your engine's performance. Eagle is a well-known name in performance engine components, and this balanced assembly takes the guesswork out of matching critical rotating parts. This means you can focus on the rest of your build with confidence that the core of your engine's rotating assembly is well-matched and ready for the demands of a performance 409.

Because this assembly is balanced, it's crucial to ensure you use the correct harmonic balancer and flywheel or flexplate that are also balanced to the same specification. Using mismatched components can lead to excessive vibration and premature wear. This assembly is not CARB approved and cannot be shipped to California.