Manley Rotating Assembly, BBC 565 4.250 STROKE/4.600/+43cc

This Manley Performance rotating assembly is built for big-block Chevrolet (BBC) engines, specifically configured for a 565 cubic inch displacement with a 4.250 inch stroke and 4.600 inch bore. It's a complete package designed to handle significant power, making it a solid choice for performance engine builds where reliability and strength are paramount. The components are selected to work together seamlessly, simplifying the process of building a high-performance engine.

At the heart of this assembly is a 4340 forged steel crankshaft, known for its exceptional strength and durability under high stress. Paired with this are 4340 forged steel H-beam connecting rods. These rods come standard with 7/16? ARP 8740 cap screws, a well-regarded fastener for performance applications. For those pushing the limits, there's an option to upgrade to ARP 2000 cap screws, which further increases the rod's tensile strength. The pistons are forged from 2618 aluminum, part of Manley's Platinum Series, and include Premium Chrome Moly wrist pins. This combination of materials and construction ensures the assembly can withstand the demands of powerful engines.

This rotating assembly is rated for up to 900 horsepower when using the standard ARP 8740 cap screws. If you plan to exceed that, the optional ARP 2000 cap screws allow the assembly to handle up to 1,500 horsepower. It's important to note that this assembly is not CARB approved and cannot be shipped to California. When building a high-performance BBC engine, a robust rotating assembly like this Manley package is a critical foundation for achieving your power goals.