Originally Posted by UNKNOWN_370

I have to agree on this. First off our engine bays are tight as hell. Cramming a v8 in there? You are looking at serious heat trap issues. And we have that problem with our V6's now. Imagine cramming a V8. A V8 will probably weigh at least 150 extra lbs. That will just add to forward weight throwing off the balance of the Z.
Also my prediction will be is, yes you will get about 30% more immediate torque at a much lower RPM. Overall acceleration times will only increase marginally. Then you will need aftermarket to make the Z as fast as you want it for a V8. Will there even enough room in the bay for a supercharger without stretching the chassis. I think the GTR build would end up cheaper. At least the engine is the same size and weighs about. The same as ours. And it would be a "Real" JDM build. That would be hotttt!