The Manley rotating assembly for BBC 572 (4.250" stroke, 4.625" bore, +43cc) is a complete, matched system engineered to deliver strength, balance and consistent power in high‑demand engines. It pairs a precision‑forged crankshaft with 4340 forged H‑beam connecting rods and 2618 forged aluminum Platinum Series pistons with chrome‑moly wrist pins, while ARP fastener options support high‑output builds up to the quoted range.
Product Description
Manley Rotating Assembly, BBC 572 4.250 STROKE/4.625/+43cc
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.
