Don't want to hijack this thread.....but I'm gonna

If one were to replace the stock springs and retainers with race springs and Ti retainers, could the bottom end of a stock 3.0 handle the higher revs? I know there is no reason power-wise to rev higher, but in the event of a missed shift, would the valve train have a better chance of escaping damage? Just wonder if these things would be cheap insurance if doing a rebuild.