Mitsubishi's/DSM's are nothing like Honda's or Ford's when it comes down to swapping engine's. Hence why it doesn't occur as often. You would need engine, tranny, ecu, wiring harness and all the misc things inbetween. Not to mention custom brackets, welding, etc. is involved. The 420a engine faces the opposite direction. If you want turbo I would suggest boosting the 420a. It would be a lot easier then trying to do a 420a to 4g63t swap.

PM sent.