Paul Kane knows what hes talking about and provided valid technical info. Pat the chevy man on the other hand ............. I would provide pat with the link to a ford big block forum so he could make a informed rebutal........but after reading his reply I think conduct could be a issue if I did Pat knows what he is talking about when it comes to building chevy motors and has a shop and nice tools,but may not be up to speed on the latest Ford information.