Yesterday I helped a neighbor who's replacing the engine in a 2007 Dodge Ram with a 5.7 V8 he's trying to flip.
Engine was locked up and we pulled the oil pan, gasket/windage tray and pickup tube. Then we pulled rod and main caps until we finally were able to get the crankshaft to turn. Almost every rod bearing was spun, a few were stacked, and #5 and 6 were basically welded to the rods. Lots of cursing, beating and prying but finally we were able to remove all the rod and main caps and get the crankshaft to turn. All this was done so the torque converter bolts could be removed, otherwise the converter would have had to come out with the engine and he'd still have to get it removed anyway.
It appears someone installed a new oil pump, but did not clean the pickup tube, replace the o ring where the tube bolts to the pump, did not replace the oil pan gasket or timing cover gasket, and either forgot the oil or the blocked pickup screen would pull oil through it. I didn't think to get any pictures because frankly, I didn't want to do the job wasn't inclined to do anything but get it over with. Got paid though.