Eagle Chevy 454 1Pc 4.250in Crank 1Pc Rr Seal 6.385in I-Beam Rods 4.310in Pistons Rotating Assembly

This rotating assembly from Eagle includes a 4.250-inch stroke crankshaft, 6.385-inch I-beam connecting rods, and 4.310-inch pistons, all designed for Chevy 454 engines that use a 1-piece rear main seal. This is a complete package to rebuild or upgrade the core rotating components of your engine, providing the foundation for significant power increases. The crankshaft is forged for strength, and the I-beam rods are a well-known choice for their balance of durability and weight. The pistons are sized to match the bore and stroke, ready for your chosen compression ratio and camshaft profile.

Eagle has a solid reputation for building robust engine components, and this assembly is no exception. The 4.250-inch stroke crankshaft is a popular choice for increasing displacement and torque in big-block Chevy engines. Paired with the 6.385-inch I-beam rods, this combination helps achieve a good rod-to-stroke ratio, which is important for reducing side-loading on the pistons and improving overall engine longevity, especially when you plan to push the power levels higher. The 4.310-inch pistons are typically forged, offering the strength needed for high-performance applications and resistance to detonation.

When installing this rotating assembly, it's crucial to ensure all components are properly balanced as a set. This assembly is intended for use in engines with a 1-piece rear main seal configuration, so be sure your block is set up for this. Because this assembly is not CARB approved, it cannot be shipped to California. Proper balancing, meticulous assembly, and attention to oil clearances are key to unlocking the full potential and durability of this high-performance rotating assembly.