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
no
yes,also ls1 ls2 and a 5.0 bascally any v8 fits perfectly
yesyou can change just 1 you dont have to change both
you can but you run the risk of screwin up everything in the car including internal components that aren't meant for the supercharger of an ls2 engine
LT1 gen 2 to LS1 gen 3 no
You can put Oldsmobile 350 heads on an Oldsmobile 307, if the 307 is 1984 or older. It will take some work but it can be done, I know for a fact that it can, because my 307 has 350 heads on it. It runs great. I'm not sure about the cam though.
yes
yes
yes
Yes
You can put the Vortec in it if you have the wiring and ecm to run it. or you could use the Vortec heads and an aftermarket intake and really wake up your engine. The vortecs use a roller cam.