LOL "Dave's not here man" that's a great line brother.
Sorry guys. If the crankcase ventilation system is closed off the suction could lead to a crack in the light weight metal valley pan gasket. If that insulation package, which was in a closed flat tin foil bag, was there and laying on the crack it could have got sucked into the engine and dispersed throughout. I had such a crack develop when I was a kid. Oil started getting up out of the valley area and onto the valley pan making a real mess. I hadn't recognized what caused the crack and put a rag there for a short term measure (no insulationg package present on that engine) until I had a new valley pan gasket to replace it with and when i drove the car the next day ... it sucked the rag right into the lifter valley and chewed the rag to pieces and it was stuck everywhere. But we caught it quickly when the oil pressure suddenly died, diagnosed the problem and took the top end apart and picked the bits of rag out of the lifter bores etc.
I corrected the crankcase vent problem, put a new valley pan gasket on and no more problems.
Whoever the OP was. Was the valley pan cracked at all ??
I went back to the beginning of the thread and checked it all out.
I see the answer was no and you guys were already on this line of thought. Sorry to be so presumptuous fellas.
Perhaps it had happened years ago, got fixed with a new pan gasket and was sitting in there but somehow not causing problems when it was a daily runner ?? and after setting for so long ....
IDK
Or like has been suggested some unwitting dumbass put the valley pan insulation package under the valley pan years ago. From the pics the valley pan is old and had some paint on it where no paint, rust .. so it wasn't a recent, or even recent when it was running, replacement.
That pics I saw when going back to the beginning remind me of my situation with the rag. It was ripped to pieces and bits were wrapped around the cam, stuck in lifter bores etc. We pulled the oil pump, checked it out (don't recall if the rag got in there). We picked it all out and luckily and miraculously had oil pressure again.
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