Are the 90-96 300ZX parts interchangeable like if u supercharge a max maybe putting in 300ZX Pistons connecting rods and stuff like that?

 

No, the 90-96 used the VG30DE engine, while the 4th gen Max has the VQ30DE engine. I'm pretty sure they have a slightly different bore and stroke. When I get home I'll double check that in my Chilton which covers all Maxima models years 93-98 for some weird reason, which is THREE different engines: VE30DE, VG30DE, and VQ30DE. Although there is a turbo VQ30DE in other countries under the Ceifero label so that might be an area of interest to you. I just learned this recently so I don't know much about it but I have heard that the firewall is pushed back a bit to allow for the added room of the turbo piping. I'll post back with that bore/stroke info later today.