Universal Parts GY6 63mm Big Bore Cylinder Kit

LogoUniversal Parts 63mm Big Bore Cylinder Kit for 150cc GY6 4-stroke engines. Upgrades to 180cc based on a stock stroke of 57.8mm! Includes cylinder, piston, pin, circlips, rings, head gasket and base gasket.

*You may need to modify your engine case to accommodate the larger cylinder.
  • Upgrades to 180cc!
  • Bore: 63mm
  • Overall Height: 90.5mm
  • Cylinder Sleeve Outer Diameter: 64.9mm
GY6 QMI/QMJ 152/157, Various unlisted mak


3 in stock