I don't know a lot about engine swaps, I need some help. I want to swap a 97 LS engine into my 90 LS. Can I use the same tranny? Also do I have to replace any other parts in order to swap this engine into my car? Thanks for the help.

yeah it should be an easy swap basicaly the same engine you'll probably need the computer for the new engine but everything else should work together.

You need the harness from the motor along with the ecu, plus since it's obd2 motor your going to have your work cut out for you.