GOOFIT 57.4mm Cylinder Head 157QMJ 152QMI Engine Gaskets Parts With Gasket Spark Plug Replacement For 4 Stroke GY6 150cc ATV TaoTao Karting Chinese Scooter

Great piece of kit supplied but unfortunately I had to return it as the measurements were wrong and it was too small for my pit bike. It does say it fits 150cc motorcycles which mine is but my pot bike needed a 60mm piston so it may be worth measuring what you need before purchase. Delivery was swift and before stated date which was great and the return and refund was also equally swift and easy.

perect

Good product for a small price. I love goofit because I can order quickly and cheaply with same-day delivery but the lack of quality control angers me. One valve was poorly protected.

Head and cylinder don’t line up, piston is not balanced or machined correct. Cheap very cheap materials used to produce these items.Not worth the money or time fitting themAvoid at all costs

Engine ran for about half an hour after fitting new parts before it started losing compression and burning oil. Made of butter????

Doesnt fit

Amazed that I was able to rebuild the upper section of my scooter for total of 68$. This comes with new valves n guides already assembled so no messing around w lapping valves, grinding seats, spring compressors, etc.

Worked well

It fit perfect ,no complaints ,everything was great for price

I have purchased many gy6 cylinder heads but this is got to be the worst one. Intake valve is not closing in completely so all compression is lost.

Perfecto tengo una 125cc y con ese cilindro va más desahogada, no hay que pensar en que vas a sacar mucha más potencia pero si se nota un poco más desahogada, y abtenerse quien no sepa mucho de mecánica hay que mecanizar el bloque para que entre