Universal Parts GY6 63mm Big Bore Cylinder Kit
$79.99
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Universal Parts 63mm Big Bore Cylinder Kit for 150cc GY6 4-stroke engines. Upgrades to 180cc based on a stock stroke of 57.8mm! Includes cylinder, piston, pin, circlips, rings, head gasket and base gasket.*You may need to modify your engine case to accommodate the larger cylinder. Upgrades to 180cc! Bore: 63mm Overall Height: 90.5mm Cylinder Sleeve Outer Diameter: 64.9mm
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