GY6 180cc Upgrade Cylinder Head Rebuilt Kit with Valves, 61mm Big Bore with Piston and Ring Assy for 152QMI 157QMJ Engine Chinese Scooter Moped ATV Go Kart Quad

I purchased this kit and it didnt fit as my casing would have to be bored out to fit the cylinder. I contacted the seller and discussed the issue with them they responded fast and they had another option that would fit they got it sent out right away and i had recieved my original package and the follow up package all in a little over a week total they were great and fast. If you have a 150cc there is a chance this will fit without boring the casing there is a video rolling wrench makes on youtube I found after the fact that shows the model# for the motors that 61mm fit without boring but not all will fit hope you have better luck than me on that end but again as far as the customer service they are getting a 5 star for the new product they sent me and how fast and helpful they were at getting the issue resolved. will definitely buy more products from them in the future for projects. Thank you,

Iv sent it bk over 2 weeks ago my money still ant bin refunded wots going on I ant happy

It came used and broke

I have bought this product a few times and its not bad for the money.I am not sure what the review from christopher was all about its a over head valve engine what push rods are you talking about??????

There are several gy6 blocks and this didn’t fit my kids particular go kart engine