fixeruper
02-20-2007, 01:49 AM
Lifan has just come out with a new oil cooled 138cc engine. This is supposed to kill the 125's like they were 50's. I have a chance at getting a next to nothing deal on a at70 with the engine in pieces, and have heard alot of stories of people trippeling the horsepower for their little 70's, by dropping in one of these lifan 90cc, 100cc, and even the 125cc! But some issues I've heard about these projects is the cylinder/head clearing the front tire and fender. Well my question is, will the 138cc with the oil cooler fit in the atc70 frame and still clear the front fender. Also, the lifan's come with a 9.5:1 compression piston. Is there a honda piston that I can exchange to have the same bore/higher compression, and still fit the engine? This would be a great deal on a atc70, but I need your opinions first. What do you guys think?