Re: Engine knock...
It could be your engine mounts. At 220k they probably worn out causing the motor to rock inside the engine bay. I doubt you are experiencing rod knock since you are still driving it. As soon as an engine starts knocking then its only a matter of minutes before it self destructs.
06 Dodge Charger R/T 13.8 @ 101mph gainesville raceway
exhaust/intake, srt suspension, 22" staggered viper wheels.
04 Nissan Armada all stock