The center link will hit there without massaging the pan. I don't know how different the factory big block pan is, but it is different. BUT, if you use a '73-76 center link and associated idler and pitman arms you can run just about any passenger car pan. I have a B-body baffled pan (no notch) in my Barracuda with the 440. My car already had complete '73 suspension/steering parts.