Hello. Sorry for my english.
I have camaro z28 1993.
Low oil pressure after engine overhaul.
383 stroker, AFR Air Flow, intake edelbrock... and many other things.
New oil pump, but oil pressure is low! only 10psi on cold engine.
I know that oil system have 2 small "blind plug".
Can be low oil, if oil system have not this "blind plug"?
How they look like?

 

10psi at idle?

 

2000 rpm cold engine. Oil 10-40.

 

Pressure is way too low.

The builder may have missed the ball plug that has to be replaced in the oil gallery hole at the rear main. It is literally a ~10mm ball that gets gently seated/tapped in the hole.

 

Thanks
Can you show on picture where this ball must be?
Because i'm not builder, and builder sad the "blind plug" can't down oil pressure to so low. And he didn't find anything in oil pan, when open engine at first time.

Sorry for my English, i hope that you understand me)

 

This book has several references and pictures of this ball. It usually takes deliberate force to take it out. It is in an oil gallery between the rear main cap and the oil pressure sensor hole at the top, rear of the block.



I assume your builder set all bearings and clearances correctly.

 

Thanks to all. Problem was in rod bearing

 

Thanks for the update.