NCY GY6 171cc Engine Package

If your looking for a quality, simple. and effective big bore/cam/head package for your 150cc gy6, look no further. This setup requires ZERO machine work.  Don't forget some ProCure to avoid any leaks. This setup includes the following: 61mm big valve cylinder head 61mm 171cc cylinder kit complete with all gaskets/piston etc High lift race camshaft  Intake Lobe 26.25mm Exhaust Lobe 26.15mm