I have a 94 Amigo 2.6L and the engine is shot 140K it was badly overheated/rebuilt but did not last 20K miles after that now it burns oil atabout one qt per 100 miles, Fouls the plugs in 2 cylinders. In any case I want to replace the engine but have always felt the car was underpowered. Is there any other engine that will "drop in" and adapt up the the stock transmission/transfer case? 5 spd std. Thanks in advance.