you can run an SR20DET in it, you can run many different engines. it is just making it work. you can also use a Subaru WRX LSD in it. it bolts right up, there is a special tool you will need to take out part of drive shaft, once that is open put the Datun's pieces in its place. not too hard. go to
www.dimequarterly.tierranet.com and someone on there put a post on telling you how to do it. it is not tough to do... also go big brakes on the front - 280ZX, if you do that get bump steer spacers.