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Your cart is empty.80cc Cylinder Head & Valve Assembly QMB139 / QMI139 4-Stroke Engines. 69mm Valves Intake Bolt Hole Spacing: 44.75mm Exhaust Bolt Hole Spacing: 49.75mm
pickAgift
2025-09-03 18:32:53
Cylinder head looks very good, didn't come with threaded studs for intake & exhaust nuts, and no gasket in box.Reused my old cylinder head hardware.The Combustion chamber machined looks good for 47mm , big bore upgrade & matches the cylinder accordingly. NON-EGR should produce many more miles.
Vincent J. Sartoris
2025-09-02 12:46:42
I installed this to replace the 69mm valve cylinder that came with a BBK set I had installed in which one of the valves wasn't seated properly and made it difficult if not impossible to set the valve lashings at the proper spacing. This was perfect and solved the problem. I can't recommend this enough - 5 stars.
Mike
2025-08-31 21:45:56
It's semilunar to the stock head I have but it works pretty good.
Tanya Savashynskaya
2025-08-01 15:09:50
Perfect fit for my 2014 taotao. I should have replaced the old one when I installed my BBK but I waited until my valve seals went bad. This fixed my compression issues, now it runs better than ever.
Stacey Childress
2025-04-09 19:53:41
Good product as listed bolted right up with no problem
Hedgepeth racing
2025-03-06 15:50:49
Was casted little crazy so you might as well as port it while you got it all apart
KIMMY HOPSON
2025-03-01 14:07:19
love the item, no dislike what so ever
gregory w johnson
2025-01-22 11:42:00
I put on my Moped and it is still working thank you
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