Manley rotating assembly is a unified system of forged crank, premium pistons and robust rods, engineered for balance and durability in demanding engines. Intended for Ford 4.6L applications, it uses a 3.543" stroke/3.572" journal and dished pistons to achieve target compression characteristics. Component selection and tight tolerances ensure reliable load handling across a wide operating range for serious builds.
Manley Rotating Assembly, BBC 548 4.250 STROKE/4.530/-20cc