[maxwedge]

Welcome to AF. From our desks, of course, noises are impossible to diagnose. Pull the valve covers off if you think it is in the valve train and feel the rocker arms at idle, if the ticking is in one of them you can feel it, be careful of course. Not mentioned, but this is a 3.1/3.4? Also make sure it is not an exhaust leak, this has fooled a lot of folks as it can sound like a valve, especially when revving the engine. All guess work from here.