Manley rotating assembly combines a forged crankshaft, H‑beam connecting rods and 2618 forged pistons into a single matched kit to support high‑output engines. Specified for Ford 4.6L with a 3.543" stroke/3.572" journal and a dished piston profile, the package is designed for precise balance and robustness under heavy loads, with bolt and component choices that affect the usable horsepower ceiling for performance builds.
Manley Rotating Assembly, BBC 548 4.250 STROKE/4.530/-20cc