No oil pressure

[GreyWolf]

Just rebulit a(1978) 351 windsor, And put in a 1979 f-100 custom. Starts and runs great but will not build any oil pressure.Checked oil rod it was good and in pump. So went to pump next it also was good. So checked mains they all look fine.Was told it may be the crank.But i need the factory specs on crank so i can check it.Could it be a missing plug in the oil galley?Or maybe needs a plug where there isnt one ? Not real sure thats why im asking for someones help.

Thxs
Greywolf

 

[BLADE262US]

Do you have a mechanical guage or electric could just be a bad guage especially if youve run it and the mains looks fine .