Threaded port again
 

Hi again, I found the lower block coolant drain but the port I questioning is higher up. I put headers on the car but now there is very little room for oil pressure unit, could this port be used? I’ve included pics. Thanks again.
https://cimg7.ibsrv.net/gimg/monteca...0b9a938a0e.png
https://cimg1.ibsrv.net/gimg/monteca...c6ad7099be.png

That's for the clutch pivot ball.

Hey, found the answer from Elcam. Those are not ports they are stud holes for a clutch linkage. But my dilemma now is with the headers I installed there’s no room for the oil pressure sending unit. I also have an aftermarket intake so there’s oil port near the distributor either. Any ideas?! Thanks again.

The standard oil pressure gauge port is adjacent to the distributor:

https://cimg7.ibsrv.net/gimg/monteca...29c1990119.jpg

If your aftermarket intake covers that, it was poorly designed – kinda makes one question the quality of the intake as a whole.

An option is a port at the front of the engine:

https://cimg8.ibsrv.net/gimg/monteca...770f1e1760.jpg