1980 360 La oil pump pickup tube install

RustyRatRod said
That hole was used somehow in the casting process. It's nothing of use. If you're using a one piece oil pan gasket, there's no need for sealant. Also, you can use Locktite on the bolts. I prefer blue.

also do i plug that hole with something im afraid dirt and such will get into it no? do you recommend any plug