904 band adjustment for a 408 stroker???

You don't have to readjust the trans. when you put in a bigger engine. Just like you don't need to reset the carb or timing when you put in a new transmission. A good shift kit such as a Trans-go TF-2 kit will make the trans. last a lot longer. In stock form they didn't always have the greatest shift timing and sometimes overlapped or slipped when shifting. The Trans-go kit makes improvements that eliminate overlap and slipping. As long as the trans. is in good shape (such as been rebuilt sometime in the near past) it should last ok. Lockup trans. converters leave a lot to be desired. Most guys shy away from lockup transmission because of that.