SSP-G 50cc QMB139 4-stroke 52mm, performance cylinder head.
Please note: replaces Cylinder Heads with 64mm Valves (Short Valve Style).
Intake Valve Diameter: 21.5mm
Intake Port Diameter: 24mm
Exhaust Valve Diameter: 18.9mm
Exhaust Port Diameter: 22mm
Valve Length: 62.3mm (compatible with 64mm Short Valve Style Heads)
Does Not Include Camshaft, Please See Related Items
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