Does anyone know the piston pin height of the 1st gen and 2nd gen 300ZX? Can you use them to build a 3.0? The stock bore of these is 87mm and you could build a 2960cc if possible. With a 1mm overbore you could build a 3047cc.
There are better choices for a stroker motor. Go to the IZCC home page,(link below), and look under the how to modify your Z for more hp. Steve Golik wrote an excellent FAQ on the 3.0 and 3.1. He has listed specific part numbers, what works, etc... It is an excellent resource. Under that section, it also has the detailed buildup by the Georgia Z car club, and my writeup on my dyno time, and a mirror of my web page.
-post or e-mail if this is unclear or you have more q's.