AO Platinum Member
Join Date: Aug 2003
Location: London, England
6mm would be one hell of a gasket!!
I don't know if the bore centres are the same in the 1.6 & 2.0, that could be your biggest obstacle.
It may be possible using a 1.8 block.
I guess you want to use std parts to keep the costs down. Special pistons and/or rods would get over the 6mm height difference but I expect there would still need to be machining inside the block to get clearance.
AHM or Alfatuner may know for sure if it is even possible, but like most things it is unlikely to be easy!
Audi TT 3.2v6 DSG
2012 Renault Twingo 1.2
xAlfa 156 Selespeed sp3 + Brembo conversion
Fiat Cinquecento 899cc