John....one more thing....there's a plug (like a small freeze plug), I think at the back of the block under the intake manifold....kinda in the lifter galley.....is that one installed? You won't get any
oil pressure if it's left out.
When I assembled my engine, I primed the
oil pump with a battery drill.....Craftsman 18 or 19V drill.....I got
oil coming out of the pushrods with it.