Racing cylinderhead of the well-known tuning brand NARAKU. With bigger valves, optimized combustion chamber and better port layout with 59mm diameter this head is the perfect partner for all 160cc-180cc tuning cylinders.
Better thermic consistency and reliability.
Fits most 125cc import scooters and quads with the GY6 engine. With certain manufacturers of this engines it is necessary to lift the cylinder ( with base gaskets) to have enough squish clearance between the valves and the piston crown. The same applies for the use of sports cam shafts. Using different timing chains of different length may also be necessary in some cases.