O.K. seriously, I would say no, but I'm no technical guru, although there are tons here that are. Just hang around and I'm sure someone will give you a better answer than I did.
Just to clarify, No, it's not a good thing. Especialy if it wasn't doing it before the swap. Sounds like you might be burning off some coolant, although, for the life of me I couldn't tell you why. I've never swaped out a cam before myself.