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

Manley Performance has a solid reputation for making well-built engine components for demanding builds. This rotating assembly is designed for a Small Block Chevy (SBC) and offers a 383 cubic inch displacement with a 3.750-inch stroke, which is a popular choice for increasing power and torque over a stock 350. It’s a complete package to get your engine build moving in the right direction.

At the heart of this assembly is a lightweight 4340 forged steel crankshaft, chosen for its strength and ability to handle higher RPMs. Paired with it are 4340 forged steel H-beam connecting rods. These rods are strong and come ready for either ARP 8740 cap screws, capable of handling up to 750 horsepower, or you can opt for the stronger ARP 2000 cap screws for builds up to 1,500 horsepower. The pistons are Manley's own Platinum Series, made from 2618 forged aluminum and include premium chrome moly wrist pins. These pistons are designed to work with the -4cc flat top configuration, which is a common setup for achieving a desired compression ratio with various cylinder heads.

This rotating assembly is a significant step up from stock components, offering the strength and reliability needed for performance applications. It’s important to note that this assembly is not CARB approved and cannot be shipped to California. Always refer to manufacturer specifications for proper installation and compatibility with other engine components.