I was wondering what kind of work it is to put a 1989 Pontiac Grand Prix Turbo 3.1 in to a second gen cavalier. 
What parts from  the grand prix and so on. 
 
Thanks for any help or comments.
 
Stock TGP crossover pipe hits the J-car rear mount and must be custom fabricated.  
Translation:  The TGP setup is no easier than custom fabricating a kit from scratch, save for the fact that it may be a better platform to build from. 
1989 Z24 Convertible - Dust Covered
2006 tC - Dust Covered, but driven more
 
So i should just get the exhaust manifold and go from there>?
 
What about the turbo and manifold from the above car, onto a 3400? would it restrict the 3400 (smaller exhaust pipe) or would it give me any gains?
 
3x00 heads have different port shapes; won't work. 
1989 Z24 Convertible - Dust Covered
2006 tC - Dust Covered, but driven more