Cylinder Head Naraku, GY6 152 QMI 125-180cc 4-stroke

Cylinder Head Naraku, GY6 152 QMI 125-180cc 4-stroke, big valve racing cylinder head for all GY6 50cc (139QMB) engines. The head has bigger valves and wider channels as well as a larger 59mm combustion chamber.The cylinder head fits Naraku tuning cylinders 160cc – 180cc for China-based GY6 engines 125cc\/150cc, this includes scooters, quads, buggies etc. If you want to increase performance even more, we recommend getting a tuning camshaft with altered valve timings.

intake valve d. 23mmexhaust valve d. 28.5mminstallation height 60mm