Rovira Motorcycle Branded 60mm Big Bore COMBO Kit for the GY6 150cc 157QMJ engines with oversized valves and a piston made for these valves. These valves are 30.5mm/26.5mm
For 90% of engines out there there is no boring of the case required. But there are 10% of you all where this kit will not fit. Also this kit will not fit any go kart, or ATV regardless if it has a GY6 in it. Cylinder, Piston, Piston Rings, Piston Clips, Rod and Gaskets.
60mm Taiwan Made Valve Head. Taiwan Made A13 Camshaft. Includes Gaskets, Studs, Bolts, Spark Plug.
MADE IN TAIWAN BY SHENGEE. Outer Skirt Diameter 61.94mm.
YOU AS A CUSTOMER ARE RESPONSIBLE FOR MEASURING YOUR BORE OPENING TO VERIFY IF THIS KIT WILL FIT OR NOT.
WE CANNOT EXAMINE EVERYONES ENGINE OURSELVES.. WE Recommend NOT installing any stroke crankshafts with this kit.
ITEM IS SHIPPED VIA USPS PRIORITY. RETURNS ARE ONLY ACCEPTED IF THE PRODUCT IS UNINSTALLED, AND ALL BOXES, PACKAGING MUST BE IN ITS ORIGINAL CLEAN CONDITION. IF ANYTHING IS COVERED IN GREASE OR OIL WE WILL DEDUCT 50% FROM THE REFUND.