Hello all . I am trying to get my sisters 91 Legacy ( 2.2L auto FWD ) up and running again and need a bit of info ; A while back the water pump went bad while her son was driving it and it got HOT , both head gaskets are blown looking at the compression readings ( 25 , 5 , 40 , 0 ) but I fear the rings may have lost tension as well so I want to replace the engine . My question is this , What year(s) engine can I use ? I believe any first gen would be a direct replacement but can I use any other 2.2l from other models or years with a few changes ( e.g - intake/injection , sensors/coil ) ? I have been looking a bit for a engine or a parts car but would to know what all my options are . I am just learning the in's and out's of these cars and I apoligize if this is a overly asked or simple question . Thanks all .