Ticking noise coming from both heads

My friend has had his 300 for 3 months now. It is a 2005 Chrysler 300 AWD w/ Navigation and the 3.5L engine.

I had my friend pop his hood so that I could look at it.

We both noticed a ticking coming from the heads.

Is the ticking normal or are the valves or rockers in a position that is bad for the engine?

Please let me know asap because I would rather not see my friend's 300 have problems.

Thank you to all who reply.

-Brian

how loud is the ticking? Could just be the injectors firing....

The ticking isn't noticable when the hood is closed. When you open it the hood you can hear it. I guess it could be the injectors...

Thanks for the help

-Brian