Best Quality 47mm / 80cc Cylinder head Kit with 69mm valves and no EGR port (fits GY6 50 engines with 80cc big bore kits).
For the best performance from your 80cc big bore kit use this matching 47mm head.
Important Note: How do you know if you have 64 or 69mm valves? The 69mm long valves are noticeably higher then the valve cover gasket surface (the 64mm valves are even with the gasket surface).
Compatible Engine Bore: 47mm (1.85")
Exhaust Valve: 16.2mm
Intake Valve: 18.6mm
Valve Length:69mm
Description
GY6 47mm cylinder head 47mm Engine Cylinder Head Assembly