Which Audi engine in my GTi??

[AudiA8Quattro]

NO it won't work.
A block for a 16v will not work with an 8v head, as the breather arrangement won't be the same.
If you have an 8v, you need a 2.0L 8v BLOCK.

[jimbo]

seems to be a bit of confusion going on here!

if you have a engine with the AAD code it will be a 2.0Ltr 8 valve:

Audi 80 2.0i 8V 89-95 Eng Series :2E,AAD
Eng cc :1984cc
Eng Type :OHC

This will swap straigt over with your PB engine bottom end. As i said before.

The 16 valve engine has these codes:

Audi 80 2.0i 16V 90-95 Eng Series :6A,ACE
Eng cc :1985cc
Eng Type :DOHC
? ? ? ? ? ? ? ? ? ? ? ?
and as stated by golfvr6-is-back this wont fit.