Can you engine swap 1997 3000GT non turbo engine for a twin turbo engine?

you should be able to, it would be expensive, maybe more expensive then just buying a vr4. To do it you would need the new engine, the turbo wiring harness, and ecu for sure. The transmission of the VR4 (aka turbo 3000) is an all wheel drive transmission, and the N/A 3000's are FWD. To have the car AWD you need to sap the whole drive train from a VR4, other then that your car will just be FWD.