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Pressure testing BB and Hemi engines is pretty easy. I sell a simple tool that bolts on to the water pump mounting surface. Just hit it with a little air pressure and look/listen for the leak.



i made a fitting for the pump connection yesterday a bit like that. i'm going to bolt my Torque plate on the block with another gasket so it's sealed up & give it a go with water pressure. one of my crew does testing of water mains so he has the tools. we'll test it to 20psi later in the week. if it's not the block we'll do the heads next. seems strange that the milky oil is only at one end. this i why i think its local to that part of the engine.