100cc QMB139 50mm Big Bore Cylinder Kit GY6 engine with 69mm Valves EGR Head
$97.25
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GY6 100CC 50mm QMB139 Big Bore cylinder Engine kit with Cylinder, Cylinder head,piston kit, head gasket, base gaskets. QMB139 50mm Piston Kit Piston Outer Diameter: 50mm Cylinder Head Gasket 50mm Inside Diameter Cylinder Gasket GY6 50cc Bore: 50mm Cylinder for GY6 50cc engine Bore: 50mm Cylinder Head EGR Style Cylinder Head 50mm Bore Valve Length: 69mm Overall Height: 59.5mm Intake Port Diameter: 17mm Exhaust Port Diameter: 18mm Exhaust Bolt Hole Spacing: 49.75mm Intake Bolt Hole Spacing: 44.75mm
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