Manley Rotating Assembly, SBC 434 4.000 STROKE/+4cc DOME

Manley Performance is well-known for making strong internal engine components, and this SBC 434 rotating assembly is a prime example of their commitment to performance. If you're building a serious small-block Chevy engine, this kit gives you the core rotating parts you need to get started on a high-horsepower build. It's designed for engines with a 4.000-inch stroke and features pistons with a +4cc dome, which helps achieve a specific compression ratio depending on your cylinder heads.

At the heart of this assembly is a lightweight 4340 forged steel crankshaft, chosen for its strength and ability to handle high RPMs without flexing. Paired with this are 4340 forged steel H-beam connecting rods. These rods are built tough and come ready to accept either ARP 8740 or optional ARP 2000 cap screws, giving you flexibility based on your power goals. The pistons are Manley's Platinum Series, made from 2618 forged aluminum and include premium chrome moly wrist pins for durability under extreme stress. This combination is engineered to handle significant power, supporting up to 750 horsepower with the standard ARP 8740 bolts, and an impressive 1,500 horsepower when you opt for the ARP 2000 cap screws.

This rotating 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. Always refer to the manufacturer's installation instructions for proper assembly and balancing procedures to ensure optimal performance and longevity.