My take on the oiling system crossover tube for the small block

mopardude318 said
Sorry, just got around to do this today.

So here is a piece of brake line inserted into the oil pressure hole:

View attachment 1715245161

Made a mark flush with the block:

View attachment 1715245162

Took a measurement, exactly 8".

View attachment 1715245163

.
Sound like it's not seated all the way by about a half inch to me. I'll recheck.
What is the measurement under the cap?