For what it's worth, running significantly low on oil will wipe out bearings WAY before the engine gets a chance to overheat from lack of lubrication. Also, subscribing for updates.Back a few posts I showed that the manifold gasket was slathered in red RTV. I also know that PO was in a tight financial spot when this truck got parked around 2017 or so. and if y’all remember it had 2qts of oil in the pan when I picked it up. From those three pieces of info, my working theory is as follows: PO ran the truck while very low on oil, the entire engine got hot warping or possibly cracking both the head and intake manifold.