SSP-G 50mm QMB139 Performance Head

SSP-G 50cc QMB139 4-stroke 50mm, performance cylinder head.

Please note: replaces Cylinder Heads with 64mm Valves (Short Valve Style).

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• Intake Valve Diameter: 23mm
• Intake Port Diameter: 21mm
• Exhaust Valve Diameter: 20mm
• Exhaust Port Diameter: 18.5mm
• Valve Length: 62.3mm (compatible with 64mm Short Valve Style Heads) 
• Does not come with camshaft, please see Related Items