TAIDA 172cc 61mm BIG BORE KIT (OD 62.7). FOR HIGH PERFORMANCE FOR GY6 MOTORS. CYLINDER HEAD WITH VALVES INSTALLED (FITS:54mm). 8mm STUDS, GASKETS, AND BOLTS. HEAD GASKET, AND 2 BASE GASKETS.
FOR STOCK GY6 BLOCK WITH 54mm SPACING ONLY. OUTER CYLINDER DIAMETER 62.7mm MOST KITS ARE 65mm.
YOU WILL NEED TO RE-JET YOUR OLD CARBURETOR. WE SUGEST GETTING A LARGER 26mm or 30mm CVK CARBURETOR.WITH ACCELERATOR PUMP AND RE-JET TO SUIT. ALL OF OUR RACING PARTS.
FROM US THEN THEY ARE YOURS. THIS PART SHOULD BE INSTALLED BY A PROFESSIONAL MECHANIC.