63mm Big Bore Kit with FORGED Piston for the GY6 150cc scooter engines 157QMJ. REQUIRES BORING OUT YOUR CASEIncludes Cylinder, FORGED Piston, Gaskets, Rod, Clips. Brings you total CC to 180cc.
54mm stud spacing.
Ships USPS Priority
Returns only accepted in brand new condition with all parts. Including a undamaged, clean box it came in. Buyer is responsible for return shipping. We do not refund the cost of shipping. If item is used or damaged or dirty then we will apply a 25% restocking fee which will be deducted from the refund.