Oil filter bypass

[toolboxchev]

Looking at my next build, did some research on HV Melling oil pumps. Everyone says they are not necessary for a mild to mid engine build.

Notices also due to the priority oiling that the filter adapter has a bypass in it also. Anyone know the average pressure in a stock motor these would open up at? Is it spring operated? Can you get different spring rates, or pressure opening pressures?

Any insights into doing a build and taken care of the oiling system would be helpful.

One thing noted was a oil cooler added to a small block. I pulled one off a 88 TBI block a while back. Still shows in GM parts catalogues. Durability with the added power is what I am truly after.