Cylinder kit Naraku 180cc 63mm for 4-stroke GY6, Kymco AC

We are offering a Big Bore cylinder kit from Naraku. Technical details: - 180cc Big Bore kit for GY6-based engines from 125/150cc - Bore: 63mm (therefore, the crankcase must be slightly modified to accommodate the cylinder) - No plug & play installation! - Fits many AC 4-stroke Kymco engines 125-150cc (scooters), as well as most Chinese import vehicles 125/150cc (scooters, quads & buggies) - Can be used with the original cylinder head. To get the full power from the cylinder, a cylinder head with larger valves is also available for GY6 engines (not Kymco). For those who still don't have enough, a sports camshaft with modified valve timing is also available. Scope of delivery: - 1x complete cylinder kit (see illustration) Please check before purchasing whether the dimensions of the cylinder base opening...