Description
Universal Parts 50cc QMB139 4-stroke 47mm, Non Emissions Cylinder Head with 64mm Valves for use with 72cc Big Bore Kit! Please see our Warranty & Returns Policy.
For Use with 72cc Big Bore Kit
Valve Length: 64mm
Overall Height: 59.5mm
Intake Port Diameter: 17mm
Exhaust Port Diameter: 18mm
Intake Bolt Hole Spacing: 44.5mm
Exhaust Bolt Hole Spacing: 50mm
SUPPORTED MODELS: QMB139 50cc/49cc