<VV> 66 corsa turbo first time2 rebuild

[Patinacreme at aol.com]

Hi, I am new to the list.  I have a 66 corsa turbo.  The engine needs a 
rebuild.  I have noticed that the head number -
3856759 1965-67 110 No Smog

- it should be a 180hp. am I going to have a problem when it comes to the 
piston size?  Aren't the turbo pistons larger in diameter?
This is my first rebuild and I don't want to order anything wrong.

All help appreciated.
Patina