I just went through a '13 5.7 from a Durango that wiped a lobe. LOTS of grit in the oil galleys, MDS solenoids, pump bypass, etc. Its either full tear down or sell it for $700 as a good core with a wiped lobe for someone else to go through and clean out. It would only take a few errant chunks of old cam to destroy the new lifter rollers and do it again.