I don't know why you would want to because the vg30dett is a better engine anyways, but no, not without some Major modifications, plus a new transmission, drive shaft and rear differential.
As long as the engine is VG30DE.
any engine from the lada riva range of cars will do,1978-1989
Replace the timing belt and pray that you dont have bent valves.
The alternator belt on a 1993 Nissan 300ZX will typically squeal if it has excessive wear or it has become lose. This provides a good opportunity to replace the belt before it complete fails.
Possibly under the Engine itself in the back next to the firewall. You may have to take out the Battery and Battery Tray.
the main hose coming off the top of the radiator were it goes int0 the engine.
what sensor?
( YES ) according to the Gates website ( they make timing belts etcetera ) the 3.0 liter V6 engine in a 1993 Nissan 300 ZX ( IS AN INTERFERENCE ENGINE )
http://www.importworkshop.com/files/manuals/nissan/z32-factory-service-manual.pdf
no
It's located on the bell housing of the transmission (where the transmission connects to the engine) on the passenger side. And in case you don't know where that is... it's on the underside of the car just behind the engine.
Take it out and put a new one in.