I've just decided that I want to put a 4age into my 81 ke55 corolla. I have a 2S-C in it at the moment but want to do an engine swap. Can any one tell if the 20V silver top version will fit into the engine bay without to much hassel. What is the going price for the 20V as well. What sort of power does it put out and how much modification can be done to it?