5.9 magnum 2002

Well I bought this motor from the junkyard. It has gone 80000km sitting in a Durango. I have no original flexplate and I don want this serpentin belt in the front.
I wanna build an Engine with good Power and with the old LA style. The dampers that I have found is not fuid and SFI aproved. I read in a book that its better with internal balance if you wanna run it "hard". I really have no directly plans right now for the Engine, but maby in the future it will hava a 6-71 on the top :D thats why I asked the question :D