As long as your not trying to gain use of variable valve timing the drivetrain of a 1st gen dsm 90-94 eclipse talon laser has the corect engine orientation fir the tib, so with a few mount modifications and stand alone ecm the swap can be relativly easy ps the 4g63t out of a 90-91 dsm have an additional 25 hp than the 92-94, once my delta motor dicides to kick the bucket, im patiantly waiting at 246000 miles, i have a 91 4g63t imported from japan with 39k on it ready to drop in, but the mounts will be the fun part,hopefully you have a friend that is a machinest, the shafts canbe custom ordered in any length hp and tooth combo with just a little googleing, if u have any questions email me