Cylinder Head NCY 52mm (88cc) GY6 50cc

NCY 88cc Aluminum Performance Cylinder Head. High quality alloy cylinder head designed to work seamlessly with the 1100-1237 88cc cylinder kit. Give your QMB139 the power to get some respect. You can use this cylinder on all QMB139 engines from SYM, Kymco, QLink, Filly 50 as well as other Chinese scooters equipped with the QMB139 engine. Note: A rocker arm (part # 1100-1326) may be required for some models. Please check the valve stem height, as it relates to the installation of the rocker arms. Caution! This engine head works with 64mm rocker arms. Some GY6 50cc engines have 69mm ones as standard. If this is your case, we sell the 64mm ones separately.

NCY 88cc Aluminum Performance Cylinder Head. Great quality alloy cylinder head designed to work seamlessly with 1100-1237 88cc cylinder kit. Give your QMB139 the power to actually get some respect. You can use this cylinder on all QMB139 engines from SYM, Kymco, QLink, Filly 50 as well as other Chinese scooters with the QMB139 engine. Note: Rocker arm assembly (part # 1100-1326) may be required for some models. Please check the valve stem height, as it relates to the rocker arms installation. Attention! This head work with 64mm rocker arm. Some GY6 50cc engine comes with 69mm. We sell the 64mm rocker arm separately if you need them.