No, it will not be covered. I was told by a Dodge Service Rep., that the lifetime power train warranty only covers internally lubricated parts such as pistons, crank, cams, transmission, etc. Found this all out when I was arguing with them over the short runner valve going up because of all the oil the PCV sprays back into the intake plenum. Plus, good luck trying to get them to honor the lifetime power train warranty anyways since it was under Daimler Chrysler. Its now Fiat Chrysler.
I have a 2007 3.5, with 78,000 miles on it. Haven't had anything too big gone wrong with it (knock on wood).
2007 Black Charger, 3.5 v6. AEM brute force air intake, custom dual exhaust (AP Mufflers), Powerslot Slotted rotors, Diablosport tuner In the works: Full Coilovers (Megan Racing) Eibach Sways, Razors Edge Endlinks/Bumpsteer, DC Sports tower brace and wheels. In the future: Inertia cams, ported TB, and JBA headers