well i am not dan but i can pretty much cover this for you. if you are going to spend the amount on a build he is then why cheap out anywhere. would those other rod bolts work yes can he afford to gt the other ones then not have to even worry about it yes. i mean if you have a good amount of money are you going to build a motor with an eagle crank or callies. the eagle one will work. anyhow it is not the way i would do it personally but bothering him for an explination is silly it is just his choice. kind of like why run a rear mounted turbo setup when you know it will be slow lol sorry man hahah no really im just playin with you you new setup is killer.