Manley Performance

Manley Rotating Assembly, BBC 555 4.250 STROKE/4.560/-3cc

SKU 38555RX

MPN man38555RX

$3341.43 · Available to order

Manley Rotating Assembly, BBC 555 4.250 STROKE/4.560/-3cc

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.

Specifications
CategoryEngine Components
Sub-CategoryRotating Assemblies
UPC807298086613
CARB ApprovedNo
Prop 65 WarningY
Special OrderYes
Weight84 lb
Dimensions (L×W×H)33 × 10 × 10 in