Description
Naraku 63mm Forged Piston Big Bore Kit for 150cc and 125cc GY6 4-stroke engines and engine based vehicles. Crankcase modifications are needed for this cylinder kit. Increases displacement to 180cc! Please see our Warranty & Returns Policy.
Bore: 63mm
Outer Sleeve Diameter: 64.9mm
Displacement Increase to 180cc
Overall Height (cylinder): 90mm
SUPPORTED MODELS: GY6 QMI/QMJ 152/157, Various unlisted makes/models