I'm trying to find out the cam specs for a cam I have. I was told It is from a mercruiser 415HP gen 6 motor 502 EFI. It's a step nose roller cam. The only number I can find on the cam are: 2277 over 1622. On the other side of the cam face is 413836. Google wasn't any help. Thanks

Here.

Thanks, I had found those, but wanted to make sure it matched what was etched on the cam.