Sounds like poor or failed crankcase ventilation, to me. Clean it off and make sure the breather is in tip top shape and not too restrictive. The pcv should be on one valve cover, with a breather diagonal to it on the other.

I have picked up cars with motors like this several times and fixed it with an improved ventialtion system.

Check compression, though. It bent the pushrod earlier in its life for a reason, unless you fixed that too.

2016 Ram 1500 Crew Cab: 5.7, 65RFE, 4.56 gears with locker, Hemifever tuned, AFE intake, 87mm throttle body, JBA headers, 3" Flowmaster exhaust, split to dual 2.5" exits. 13.57 best ET so far.

Searching for new A or B Body Project!