You are NOT agreeing with me Dan.
I’ll tell you exactly what I think.
No one knows what’s inside the engine. No one knows what the clearances are. Does it have full groove mains?
So how can YOU say that a 20w50 oil means the engine is junk? You can’t because you don’t know either.
Oil is cheap enough that if he changes it and the pressure is where he wants it, WTF is wrong with that? Maybe that’s what the clearances and full groove mains requires.
Doesn’t mean the engine is junk or even has an issue.
If the OP said it has half groove mains and tight clearances then you might say it’s some other issue(s) causing problems.
I highly doubt there’s a damn thing wrong with it other than full groove mains and loose clearances.
It’s been running. Hasn’t **** itself yet. If it has more than a thousand miles on it then it damn sure isn’t junk. If it was, it would already be dead.
As for full groove main bearings. If it’s a dead stock engine and the rpm will be 5500 max you can use a 1/2 groove main.
If it’s other than that it needs full groove main unless you have an R3 or Ritter block. Then you can use 1/2 groove mains.
Why are those blocks different? Because other than those blocks everything else has original Chrysler oiling and oil timing. The other blocks have priority main oiling.