The same block is used in the 16v passats & gti's and the third generation golf & jetta 2.0. Interchanging them is far from reasonable though. harrison Tom Nas wrote: Indeed- it's a VW/Audi engine. First used in the Audi 80 (B1) and in the VW > LT light truck. Most VW/Audi I4s were developed from this engine. > > Tom