what would it take to make 450/500hp

yea I wanted to do a stroker a for a while but you get so many miss answers on them some make good power some dont. most just talk about the tq thats made and I think some time the power that some make with strokers you can make with stock parts....but I do alot of reading so maybe I need real world input......who has the best price on the cast cranks and would kb pistons work as good as the ross diamond stuff????? also would a cast crank be okay ex. bal like all the 360 where??????