402ci Oil Pressure Line Q

[lintcollector]

We bought this project truck in pieces and the oil pressure line is hooked to a sending unit and then extends up to back of the engine block, as expected. There is an extension of about 16" on the end of the line and I have no idea where it should be connected.

I looked at the below prior posts, but only found one for a BB.
http://67-72chevytrucks.com/vboard/s...d.php?t=638710
http://67-72chevytrucks.com/vboard/s...d.php?t=672161

We tried to connect the line to the back of the block and the hole was too big, so it slid right in without using threads.

Does it really matter where I connect the line as it is just a dead end to create pressure?

I've attached a few pics hoping someone can tell me where I should, or if it matters, where I connect the oil pressure line on a 402ci.

Thank you in advance, and sorry for using pdf's for the images...

First pic, top of block, drivers side view showing 2 options.
Second pic, front of block, identical port to the back which was too big
Third pic, driver side block that has 2 potential locations