I'm planning an engine upgrade for my 1600s. The most logical thing to do seems to be putting an newer engine in it from a Opel Rekord/Omega/Senator... So my question is if anyone here has any experience with this.
I've been told that it's easy. You just take the old engine out, put the new one in, and connect it to the gearbox and everything else. This should be the case for the early Rekord engines (2.0i etc) and the newer generation of 16v engines (vectra A, calibra,...).
There are also a lot of straight 6 cilinder engines around for pretty cheap prices. I saw an Opel Senator 3.0i 24v for €1500 a few weeks ago. However, the 6 cilinder engines require a lot of changes. The radiator has to be placed more to the front and the heating has to be removed because these engines are just to big.
I've pretty much set my mind on a 2.0i (or 2.2 or 2.4) because they're easier to find and cheaper.
I've read some things about having to change the oilpan to make them fit in a Manta. Does anyone know about this? Are there any problems with injection systems? And are there other changes to be made?
I've also just come across an Opel Omega with 2500cc V6 for €850 but I can't find much information about this engine to check if it would fit.