i have a s4 motor in my 88 gxl.. i might haft to replace the engine (dew to the coolant leak i might have) i was wondering will the s5 motor work with it with out putting a diffent wiring harness or motor mounts?

 

lol "might have" key words, yea i have a blown water seal in my engine and i "absolutely have" to get either a new engine or a full rebuild..........as to the wiring harness question i'm not sure