Its not the same as upgrading an A3640, because A3640 will not work if you overclock it to more than 28 Mhz, something to do with the motherboard clock signals. BUT as the 060 and 040 are pin compatible it may be possible to do this with the warp engine, but you would at the very least need to get the voltage down to 3.3 and then change the oscillator crystal. I know that you could do this with the Cyberstorm boards from phase 5, but i don't know if anyone has done it with a warp engine.
