Cylinder - and Head 63mm Alloy Big Bore Kit - GY6 125cc/150cc Scooter, ATV & Go-Kart

Upgrade your GY6 125cc/150cc scooter engine with Pitmoto's Cylinder and Head 63mm Alloy Big Bore Kit. This high-quality performance kit includes a 63mm aluminum cylinder head and block, a high-performance camshaft, piston and piston rings, wrist pin, wrist pin clips, and gaskets. The kit boasts a cylinder diameter of 63mm, bolt hole spacing of 54mm (center to center), and an intake valve diameter of 28mm, and an exhaust valve diameter of 23mm. The kit is compatible with Honda base GY6 Engine & China Cloned GY6 152QMI, 157QMJ. (Note that it cannot be installed in P152QMI or P157QMJ engines.) Please note, inexperienced installers should not install this kit. It is highly recommended that an experienced scooter or motorcycle mechanic install the kit since the valves may require adjustment and the timing must be correctly set. Also, in most cases, the engine case must be bored out to accommodate the larger diameter 64.95mm cylinder sleeve. This Cylinder and Head 63mm Alloy Big Bore Kit offers a chance to add speed and power to your scooter so that you can enjoy a faster and smoother ride. Shop now and enjoy hassle-free returns and fast shipping. Order now and experience Pitmoto quality!

Specifications

• Alloy cylinder and head big bore kit for the GY6 125 &150cc engine.
• 63mm Aluminum Cylinder Head, 63mm Aluminum Cylinder Block, High-Performance Camshaft, Piston and Piston Rings, Wrist Pin, Wrist Pin Clips, and Gaskets.
• 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
• 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.
• KYMCO: GY6 125cc/150cc
• MXer GY6 125cc/150cc
• MXU GY6 125cc/150cc
• TGB GY6 125cc/150cc
• HONDA GY6 125cc/150cc
• SYM GY6 125cc/150cc
• VENTO GY6 125cc/150cc
• Phantom R4i GY6 125cc/150cc
• Yamati GY6 125cc/150cc
• Verucci GY6 125cc/150cc
• Baccio GY6 125cc/150cc
• Viva GY6 125cc/150cc
• Matrix GY6 125cc/150cc
• Wuzzi GY6 125cc/150cc
• Lifan GY6 125cc/150cc
• Clones GY6 125cc/150cc

Compatible With

• Compatible with the Honda base GY6 Engine & China Cloned GY6 152QMI, 157QMJ. (cannot install to P152QMI, nor P157QMJ Engine)
• Compatible with the following GY6 125cc/150cc Engines models
• GY6 125cc/150cc 4-Stroke scooters, ATVs and go-karts

Product Details

• This performance kit may require some modifications to the engine case bore.
• Kit Includes
• Strada RX150