RE: Good engine for 4* 60?
OS 61FX, better all around engine then the 65LA. The FX is a bearing engine and has great power, the 65LA is a bushing engine and while cheaper, does not make the power as the 61FX does.
Super tiger and thunder tiger engines are also good ones. I personally have never owned either one but a lot of our club members do and they are strong and cheaper that OS engines