Eagle Chevy 4.8/5.3 LS 3.900in Crank 24 Tth Relctr 6.125in I-Beam 3.810in Pistons Rotating Assembly

This Eagle Pro Street rotating assembly gives you the core components to rebuild or upgrade the bottom end of your Chevy 4.8L or 5.3L LS engine. You'll receive a 3.900-inch stroke crankshaft, 6.125-inch I-beam connecting rods, and 3.810-inch pistons, all balanced and ready for installation. This assembly is specifically designed for naturally-aspirated racing applications, meaning it’s built to handle the demands of high-RPM operation without forced induction.

Eagle has a solid reputation for well-built engine components, and this Pro Street assembly is no exception. The I-beam connecting rods are a strong choice for performance builds, offering a good balance of strength and weight. The crankshaft is forged for durability, and the included pistons are sized for a 3.810-inch bore, common in many LS variants. This kit is balanced, which saves you a significant step and potential headaches during the engine assembly process. It’s a popular choice for racers looking for a reliable foundation for their LS power plant.

When undertaking an engine build of this caliber, it's crucial to ensure all supporting components are up to the task. This rotating assembly is designed for naturally-aspirated racing use, so consider your camshaft, cylinder heads, and valvetrain to complement its capabilities. Remember 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 balancing procedures.