Re: 2.0 TS Engine blown - knowledge needed please
All of the 2 litre 16 valve TS engines are basically the same, although there are a few minor detail differences between the plastic topped and aluminium topped versions, which require some parts to be swapped.
The cheapest way to get a good engine is to get one from a 146Ti or a widebody 155 as you say. The engine will fit.
145 Cloverleaf and Spider engines will also fit no problem, but the car may be more expoensive to buy for parts as they are more sought after.