Complete cylinder head with pre-installed valves for all GY6 125cc 152QMI engines. Ready to install with SLS connector. Ready to install. The valves may need to be ground in.
Please note: If purchasing this kit for the Sym 125cc scooters, please ensure your engine is the GY6 version (cylinder head stud holes have a distance of 63mm hole to hole, outside to outside measurement).
Please note: If purchasing this kit for the Sym 125cc scooters, please ensure your engine is the GY6 version (cylinder head stud holes have a distance of 63mm hole to hole, outside to outside measurement).
