Small Block Oil Pump Priming
Thanks! I will check that out. It's a 78 LA block with magnum heads.
I was reading Larry Sheppard's book "How to Hot Rod Small Block Mopars" there's also a core plug on the right side under the rear main cap. Not even mentioned in the How to rebuild Small Block Mopars I was using as a reference during the assembly.
It's about 4" down into the block and he specifically says if the block was stress relieved (mine was as part of the cleaning process) that this plug must be replaced. If it's missing/leaking you will have low oil pressure.
The bag of core plugs that I got from Mancini had a small plug that looks like the one but since there were several other extra's I assumed that the kit was for more than one engine type and they were extra's.
I will be dropping the pan tonight and take care of that one for sure too.
Glad I primed the pump with the engine still on the stand.