There were no "HP" stampings on the 67 motors, just build dates, you'll need to find your cars completed build date and find a motor with a build date of 4 days-2 weeks PRIOR to your cars build date.
Ask me how I know?
Ive been looking for the "HP" 383 4bbl for my 67 Sat., good news for me though is that the 67 383 2bbl and 4bbl models were identical (same comp., same valves, same heads etc etc.) and since theres no identifier between the 2 I can use a 2bbl model and swap on a 4bbl intake and carb.
Now, I'm not positive about the 440's BUT, I think they're the same, if so, ANY 440 with the build dates mentioned above will work for you.