http://shbox.com/1/aux_oil_port.jpg

whats the hole above the 1/4" NPT?

I use the 1/4" NPT with an adapter for oil, whats the one right above it though?

Im pretty sure mine on my car is open with no plug, so is there just threads there and its a closed hole, or what?

 

When i tore down my LT1 there was nothing in that hole, just a bunch of gunk

 

some old cars had a pivot ball that screwed in there for the clutch linkage

 

Clearly the "bunch of gunk" was not limited to just the hole.

 

Exactly right. (though the term "old cars" seems a bit harsh )

 

maybe I should have said older.....

I know the camaros had it before the mid 80's when it went to a hyd. slave cyl.

 

Hey its lookin a little better now

 

It sure is!