driveline upgrades?

i have a 91 camaro rs with the 3.1 in it. i got the car cheap enough that the engine didnt bug me too much but i was thinking that i would like to put an ls1 in it so my question is what else in the driveline do i need to put in. the transmission is the 700r4/4l60 the driveshaft is steel and i am not sure what rear end i have but i would like to swap it to a rear disc brake system. i have not but too much thought into the project yet as i do not have funds but was wondering if anybody can point me in the right direction. is the trans and driveshaft strong enough to handle the bigger engine?

The tranny and rear will be fine at stock levels. Otherwise you would want to upgrade both. The rears in the 3rd and 4th gen cars arent that strong. If you found a used engine a lot of times they have the tranny with it. In that case you could just sell yours.

thanks man that is all i need to know for now