Manley Rotating Assembly, BBC 555 4.250 STROKE/4.560/-3cc

Manley Performance is well-known for making strong internal engine components, and this BBC rotating assembly is a prime example of their commitment to building parts that can handle serious power. This kit is designed for a 555 cubic inch Big Block Chevy with a 4.250-inch stroke and a 4.560-inch bore, featuring a -3cc piston dish. It’s a complete package for anyone looking to build a high-performance engine that can put down serious grunt.

At the heart of this assembly is a 4340 forged steel crankshaft, chosen for its strength and durability under high stress. Paired with it are 4340 forged steel H-beam connecting rods. These rods come standard with 7/16-inch ARP 8740 cap screws, a solid choice for engines up to 900 horsepower. If your build is pushing the limits, you can opt for ARP 2000 cap screws, which allow this assembly to safely handle up to 1,500 horsepower. The pistons are forged from 2618 aluminum, part of Manley's Platinum Series, and come with premium chrome moly wrist pins, ensuring they can withstand the intense heat and pressure of high-performance combustion.

This rotating assembly is a substantial investment for a serious engine build. It's important to 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 to ensure optimal performance and longevity.