Help needed with sb 318

I have seen a factory 7 quart pan on a van once, 1989 318 high swirl. With a large oil filter, took two gallons of oil. But my moneys on the dipstick being wrong for the application. Ditto on the freeze plugs, pull all the old ones and the block plugs out, run coat hanger or engine cleaning brushes through everything, prepare to hose down and get dirty. If you have access to a hot water pressure washer, even better. Plan on running flushing water through your radiator and everything else, too, that crud builds up and cakes everywhere in the whole cooling system. What year truck or van is that?