Will a ls7 motor fit n a 98 chevy camero
Yes
Yes
No, only a 98-02 Camaro hood would fit an 01 Camaro
no it's not going to have the LS7 engine, it's going to use the LS2 with 422 horse.
Yes
Yes
No
yes they do
yes it should as it's basically the same body.
Nope
If not will a Ls3?
Yes, they should bolt up no problem.