Rusty that happened to the first while whale, a 5.2. Dodge went to those God Damned "trumpet" oil pickups. the tube simply comes and bends straight down, and there's a small screened "trumpet" on the end. They plug up with sludge.
See post 4:
Regarding 4.7's, suddenly they are good?? I used to hear horror stories about them failing, dropping valves/ valve seats was one issue.
The joke used to be that Mopar, "anything dot 7 is junk." AKA 2.7, 3.7, 4.7, and even a few of the 5.7's