It has been done more times than we can count. You'll have to fab your own mounts just like in the old days. One of those universal mount/crossmembers may be your best bet.
Its been done so often its not even mildly interesting anymore. It's be just as easy to put a mopar 360 small block in it, and you'd have no problems smoking the wheels off all the other poor suckers that put lame-o 350 chevy's in theirs. 350 Chevy's aren't THAT much cheaper.
is it a car or truck? if its a truck a big block is a tight fit but will work. why not try a slant six?