383 with zero oil pressure.

Tks Rusty, hell we even packed the new pump full of grease to try to help prime it.

If that's the case, something is bad wrong. As I said earlier, pull the filter and see if you get oil out the filter mount. If not, the problem is

wrong direction (they turn ccw)

busted gasket/ o ring(s)

cracked pickup tube

NO OIL IN THE PAN!!!!