Oil cooler question

[CarlC]

A -10 AN hose fitting likely has a diameter very close to a 1/2" hose.

[CamaroAJ]

IIRC -6 is 3/8", -8 is 1/2" and -10 should be 5/8"

[J-440]

I also have a 3 quart Accusump plumbed into the high pressure side at the back of the block. Would this make up for the smaller lines?
I just don't get it. The entire oiling system passages in the block, heads, pump, and cooler are 3/8 passages. Why would -10 lines (some very short lines by the way) make a difference in friction?

[Vegas69]

No......