QMB139 39MM Cylinder Engine Kit with 64mm Non-EGR Head

QMB139 39mm Piston Kit

Piston Outer Diameter: 39mm
Piston Overall Height: 33mm
Piston Pin Length: 13mm

Cylinder Head Gasket

39mm Inside Diameter

Cylinder Gasket GY6 50cc

Bore: 39mm

Cylinder for GY6 50cc engine

Please see picture for measurements

Cylinder head

non-EGR Style
Valve Length: 64mm
Overall Height: 59.5mm
Intake Port Diameter: 17mm
Exhaust Port Diameter: 18mm
Exhaust Bolt Hole Spacing: 49.75mm
Intake Bolt Hole Spacing: 44.75mm