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.
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