[aphaynes]

So the Crankcase Filter housing won't budge from the block after fighting with it for several hours. The center hole that allows air into the engine is completely clogged. I would just knock the stuff out of that hole, but then it is going to go into the engine. Evidently with the engine still in the truck there is no good way to get a grip or leverage on it to break it loose. Maybe a shop vac while breaking the crud in the center loose, followed by dumping the oil and pulling the pan to get any crud out that falls in? Seems like a lot of hassle for a part that should not be so difficult to remove.

Maybe cooling the area with something to get the metal breather housing portion to contract?