Ticking 2007 5.7 Hemi

First, check to make sure it isn't a broke exhaust stud, this is very common on these engines it's always the rear ones, typically there noisey cold, get better when warm, secondly if it's not that these engines are known for the bearing piling up in the roller lifter then wiping the cam lobe, here is how you tell....drive by something like a fence or hedge or concrete well etc, roll down your window and lift on the gas to coast and get it in MDS mode you should be doing around 60kph or 35mph, you should here the noise, then if you do, push your " tow haul " button this will disable the MDS and the noise will go away, some will say it's your MDS solenoid but rarely this is the case, you will find its at the very least a lifter but probably it's too late and the cam will be wiped, I had this happen once you here it you get tuned in, my 2011 Ram it went at 130 kms , the dealer could not get factory lifters due to a shortage and used after market lifters and they failed again 1.5 years later at 150 kms so they did it again ( under warrenty this time ) with oem parts, the first time it wasn't under warranty it cost me 5k to do it, this is a ugly job and as it was my daily driver I chose not to do myself IF you have the tools, skills, and time, it is doable, good luck!