So I already have an s13 chasis(1990, if this matters) and it has a sr20det redtop already in it. Put in by the previous owner. So all the wiring and such were done by him. What im wondering is can I take out the motor I have in the s13 and just bring it over to the s14 zenki(1995) chasis. Ecu and all? Without modifications to the harness?