Revelation.

420a is non turbo 2.0l 2nd gen used from 1995-1999. Chrysler engine.

4g63 is non turbo 2.0l 1st gen used from 1990-1994. Mitsu engine.

4g63t is turbo 2.0l 1st and 2nd gen used from 1990-1999. Mitsu engine.

Bottom ends not even close between 420a and 4g63. Completely different tranny/bellhousing.