go to 460ford.com you will find all you ever wanted to know about 460 stroker combos there. ask any question, everyone is there to help. alot of pro builders there. I am building a 588 for my F100. I'm using a motorsport 460 block though for the extra strength and 4 bolt mains. better oiling also, but I'm shooting for 900 horse on pump gas. There are some good cast heads. some of the guys on there are making some good horse with them. there class requires OEM heads. I am using TFS a460 heads.
Dave.
I'm under Dave Maxwell on there if you make it over.
Paul Kane on here is a very respected member on there for parts and 460 knowledge