QMB139 47MM Big Bore Cylinder Engine Kit
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QMB139 47MM Big Bore Cylinder Engine Kit for GY6 80CC Parts Categories
Upgrade your GY6 50cc engine with this comprehensive 47mm Big Bore Cylinder Engine Kit, designed to significantly boost performance and displacement. This kit includes all essential components for a robust engine enhancement.
- 47mm Piston Diameter ensures increased engine capacity.
- 13mm Piston Pin Diameter for secure piston-to-rod connection.
- 38mm Piston Pin Length contributes to proper piston travel.
- 47mm Inside Diameter Cylinder Head Gasket seals the combustion chamber effectively.
- 47mm Cylinder Bore provides the foundation for expanded displacement.
This 47mm big bore kit transforms a standard GY6 50cc engine into an 80cc powerhouse, offering a substantial performance increase over stock configurations and older 47mm kits without the integrated components. It's engineered for riders seeking enhanced acceleration and top-end speed.
Unlocking Peak Performance: Advanced Engineering
This engine kit leverages a larger 47mm bore to achieve an approximate 80cc displacement, delivering a noticeable surge in power and torque. Built with precision components, it's an ideal upgrade for those aiming for higher performance and responsiveness from their GY6 engine, often outperforming less integrated or smaller displacement kits.




