Manley Rotating Assembly, SBC 383 3.750 STROKE/-4cc FLAT

This Manley rotating assembly gives you a complete package for building a robust 383 cubic inch small block Chevy engine. You get a lightweight 4340 forged steel crankshaft with a 3.750-inch stroke, a set of 4340 forged steel H-beam connecting rods, and 2618 forged aluminum pistons designed for a -4cc flat top. This combination is a solid foundation for a serious engine build, offering significant improvements over stock components.

The crankshaft is forged from 4340 steel, a strong material chosen for its ability to handle high stress and resist bending. The H-beam connecting rods are also forged from 4340 steel and come equipped with 7/16-inch ARP 8740 cap screws for secure rod cap retention. If you plan on pushing your engine hard, you can opt for ARP 2000 cap screws, which are rated for even higher horsepower applications. The included pistons are Manley's Platinum Series, made from 2618 forged aluminum for a good balance of strength and light weight, and they come with premium chrome moly wrist pins.

This assembly is rated for up to 750 horsepower when using the standard ARP 8740 fasteners, and can handle up to 1,500 horsepower with the optional ARP 2000 cap screws. Please note that this assembly is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and torque specifications.