Cylinder and Head 63mm Alloy Big Bore Kit GY6 150cc Scooters Mopeds Performance

Description

Item Description
Alloy cylinder and head big bore kit for the GY6 125 &150cc engine. This performance kit may require some modifications to the engine case bore.
Compatible with the Honda base GY6 Engine & China Cloned GY6 152QMI, 157QMJ. (cannot install to P152QMI, nor P157QMJ Engine)
Kit Includes 63mm Aluminum Cylinder Head, 61mm Aluminum Cylinder Block, High-Performance Camshaft, Piston and Piston Rings, Wrist Pin, Wrist Pin Clips and Gaskets Performance variator and weights, 2k Torque spring, Analog computer CDI, 26mm Carburetor, Conical Air Flow Filter, NGK Spark Plug. Hang on and blast off!!
Specifications: Cylinder diameter:  63mm Outer Sleeve diameter:  64.95mm Bolt Hole Spacing: 54mm (center to center) Intake Valve Diameter: 28mm  Exhaust Valve Diameter:  23mm  Exhaust Port:  27mm
Note: This kit is not recommended for inexperienced installers. It is highly recommended that it's installed by an experienced scooter or motorcycle mechanic. The valves may require adjusting and the timing must be properly set.  Also in most cases, the engine case will need to be bored out to accommodate the larger diameter 64.95mm cylinder sleeve.
Compatible with the following GY6 125/150cc Engines models KYMCO: GY6 125 and 150cc MXer GY6 125 and 150cc MXU GY6 125 and 150cc TGB GY6 125 and 150cc HONDA GY6 125 and 150cc SYM GY6 125 and 150cc VENTO GY6 125 and 150cc Phantom R4i GY6 125 and 150cc Strada RX150 Yamati GY6 125 and 150cc Verucci GY6 125 and 150cc Baccio GY6 125 and 150cc Viva GY6 125 and 150cc Matrix GY6 125 and 150cc Wuzzi GY6 125 and 150cc Lifan GY6 125 and 150cc Clones GY6 125 and 150cc