Manley Rotating Assembly for BBC 572 is a complete, matched rotating package engineered to deliver strength, balance and reliable operation in demanding engines. Built with precision-forged components and tight tolerances to reduce friction and handle high RPM and cylinder pressure, the assembly includes a 4340 forged crankshaft, 4340 H‑beam connecting rods with 7/16 ARP 8740 (or optional ARP 2000) cap screws, and 2618 forged aluminum Platinum Series pistons with chrome‑moly wrist pins, supporting roughly 900 hp with ARP 8740 and up to 1,500 hp with ARP 2000.
Product Description
Manley Rotating Assembly, BBC 572 4.250 STROKE/4.625/-3cc
Additional Product Details
Manley Rotaing Assembly, FORD 4.6L 3.543 STROKE/3.572/-6.5cc DISH
Features & Benefits
4340 Forged steel H-Beam connecting rods with 7/16 ARP 8740 or optional ARP 2000 cap screws
Horsepower range is 900 with the ARP 8740 and 1,500 with the optional ARP 2000 cap screws
2618 Forged aluminum Platinum Series pistons with Premium Chrome Moly wrist pins
4340 Forged steel crankshaft
Manufacturer Description
Manley Rotating Assemblies are engineered as complete, matched systems to deliver maximum strength, balance, and performance in high-demand engines. Featuring precision-forged crankshafts, high-strength connecting rods, and premium pistons, each component is designed to work together seamlessly for optimal durability and efficiency. Tight tolerances and careful material selection ensure excellent load handling, reduced friction, and consistent performance under extreme RPM and cylinder pressure. By combining Manley’s proven rod, piston, and crank technologies into a unified package, these assemblies provide the reliability and confidence engine builders demand when pushing the limits of power.