Universal Parts GY6 Cylinder and Head Kit

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Universal Parts Cylinder and Head Kit for 150cc GY6 4-stroke engines. Includes cylinder, piston, pin, circlips, rings, head gasket, base gasket and chain tensioner gasket. Please choose from 57.4mm bore or 61mm bore from the drop down menu. *You may need to modify your engine case to accommodate the larger cylinder. Please Note: 61mm kit does NOT fit 161QMK “200cc” engines!
Bore: 57.4mm or 61mm, choose in the drop down menu.
Overall Height: 90mm Cylinder Sleeve Outer Diameter: 61mm (57.4mm cylinder kit) or 65mm (61mm cylinder kit.)
Uses 6mm Exhaust Studs
SUPPORTED MODELS: GY6 QMI/QMJ 152/157, Various unlisted makes/models