Manley Rotating Assembly, BBC 615 4.625 STROKE/4.600/+43cc

Manley Performance has a solid reputation for building tough internal engine parts, and this BBC rotating assembly is a prime example. If you're putting together a big-block Chevrolet engine that needs to handle serious power, this package is designed to get you there. It centers around a 4.625-inch stroke crankshaft, giving you that extra displacement for more torque and horsepower.

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 ready for 7/16-inch ARP 8740 cap screws, capable of handling up to 900 horsepower. If your build is pushing the limits, you have the option to upgrade to ARP 2000 cap screws, which can support up to 1,500 horsepower. The pistons are 2618 forged aluminum from Manley's Platinum Series, complete with premium chrome moly wrist pins, ensuring they can withstand the demands of high-performance combustion.

This rotating assembly is a significant investment for a high-output engine. It's important to note that this part is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's detailed installation instructions and recommended clearances for your specific application to ensure optimal performance and longevity.