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

Starting with a 4340 forged steel crankshaft is key for any serious engine build, and this Manley rotating assembly uses one with a 3.750-inch stroke, perfect for creating a 383 cubic inch displacement for your Small Block Chevy. This isn't just about displacement, though; it's about building an engine that can handle serious power. The included 4340 forged steel H-beam connecting rods are a strong choice, and they come ready to accept either ARP 8740 or optional ARP 2000 cap screws, giving you flexibility depending on your horsepower goals.

The pistons are Manley's own Platinum Series, made from 2618 forged aluminum and featuring Premium Chrome Moly wrist pins. These are well-built components designed to work together as a balanced unit. With the standard ARP 8740 cap screws, this assembly is rated for up to 750 horsepower, but if you opt for the ARP 2000 cap screws, that rating jumps to an impressive 1,500 horsepower. The -4cc flat top piston design is also a notable detail, which will influence your compression ratio depending on your cylinder heads.

This assembly is a solid foundation for a performance engine build. Keep in mind that this part is not CARB approved and cannot be shipped to California. For optimal results and longevity, always consult the manufacturer's installation guidelines and recommended clearances.