Buy Cylinder and Head 63mm Alloy Big Bore Kit

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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, 63mm Aluminum Cylinder Block, High Performance Camshaft, Piston and Piston Rings, Wrist Pin, Wrist Pin Clips and Gaskets.

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 recommend that it's install 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

Fast order processing. Orders placed before 3pm EDT ship the same business day!
We stock over 6000 parts and we also have a nice selection of Scooters, Dirt bikes and ATVs in our showroom.

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MIAMI, FL 33177
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Important Notes

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