Here is my take on it. Porting a 2g head to get more power than a stock head is not easy to do, and the gains are going to be minimal unless going with a full professional race head worth a few thousand dollars. The 1g head is a no brainer bolt on upgrade. I saw a 3 lbs/min increase in airflow when making the swap, on a relatively mild setup no less. I can imagine the added 15-20% airflow from the stroker seeing a more dramatic increase.
Another point is that the 2g head is "smaller" than the 1g head on a 2 liter, would does it look like on a 2.4 liter? Is the 1g head now the "smaller" head for a stroker?
Hopefully you see my point.
If you said this was for drag racing, I would say 1g head hands down as the best option for your hard earned money. But seeing that this is primarily going to be a street/autox car, the smaller head may make more sense. That's a gamble you can take as you will. I can't speak from experience here being a street/drag type only
The valves and other parts should all be interchangeable as far as I can recall. The cas thing can be tough on 95-96s. Aside from welding up the head as RRE outlines, the simple fix is to use a 1g CAS. I believe if you stick with the 2g block's crank sensor and use the 1g cas only for the cam signal, you won't have the RM CEL issue, but I can't be sure. If you end up with the RM CEL the best thing to do is really to just get DSMlink. The baro wire mod and AFC combo work, but you're lying to the ECUs several different ways, and I couldn't get comfortable with that at anything over 16g or so airflow levels. Having a 95 and most likely an EPROM ECU (I was unlucky), DSMlink is an absolute no brainer anyway.
