No oil to top end

I hope you're wrong.
But that statement is why, for now,
That is why I'm all over eBay looking for new but old parts.and I stock up when the getting is good on stuff I'm quite likely to need for any one of my vehicles.
I've bought a ton of parts over the last 3 years...mostly offshore I will guess. I do try to buy name brands ie Raybestos, Melling, Felpro, etc and the only issues I had were with a Milodon oil pan that was made wrong (they admitted it) and a Fel Pro molded oil pan gasket (SBC) that didn't fit right. I bought another gasket Felpro gasket same p/n and compared to see the difference.