You can put just about any engine into any car if you have the time, money and know how. It certainly wouldn't be a direct swap. You'd need the LS1 computer, sensors, wiring etc.
Yes.
put a cat on it
yes you can but if you can put an ls1 why not put an LS2? get close to 500 horse power... if you can afford it
yes
yes
yes
Yes
no
The 1995 Z28 camaro has a v8 engine in it. That engine is a ctually a steel version of the corvette engine. Since there are 1995 camaros with v8 engines in them, you can probably fit a v8 into your car.
Maybe
It should with lots modifications
I think LS2 engines are bigger (6.0 Liter versus a 5.7 liter LS1). I would say its possible but maybe overkill.