I am lookin to build a 350 or bigger an
would like to drop it in to a 86 v8 that
I have and was wondering what all it would take.
Thanks for the help.

are you going with a carb setup or fuel injected? carb is easier but pretty much everything on v6 is not going to work with the v8. here is a good write out on what to do:
http://www.thirdgen.org/techboard/engine-swap/229665-v6-v8-swap-read.html