Originally Posted by nosympathy
you talking our 5.0 engine? honestly that isn't something I looked at. I assume a vortech or procharger with a boss intake could push to 7800RPMish no real trouble.
could a roush/whipple/etc. do so?
What sits on top doesn't have much to do with how high you can rev safely. The issue you run into much over 7500RPM is that the oil pump gear can fail and the valve springs aren't quite heavy enough.
I guess it all depends on what you consider "safe" though.