175cc GY6 Big Bore Kit - 62mm Piston/Cylinder
Turn your GY6 150cc into a 175cc screamer!
Installation requires crankcase to be split and professionally machined. We offer send-in case machining services in our machining services catalog.
See our other replacement and big bore kits
Requires Case Machining
62mm Piston, pin, clips & rings
Head gasket and Base gasket
Send us your case and we will bore it out for you! Click here for details