YES. That is a direct bolt on with no problems.
The heads will bolt on, but the compression ratio will be different. Depending on which heads and which pistons, the compression ratio could be a lot different.
As long as the 350 is older then a 1987, you will have no problems. They will bolt right on with no modifying.
No.
yes they will bolt right on.
no
the heads should fit as long as your not trying to put them on a big block
NO not even close.
no
no they will not
Yes.
a 350 is a small block those heads will fit on and Chevy SMALL block not a big block
No. Not without switching the cylinder heads. I think it was 89, Chevy came out with the 1st generation Vortec heads, which require a different intake.
With the possible exception of some very early small block heads that had offset valve cover bolts, yes, it will all fit the 283 engine.