lost all oil pressure but not flow

hey update for everyone sorry i havent been back on much lately life getting in the way and all....
new pushrod is installed and engine reassembled, havent driven it on the street but have ran it a few times in the driveway, oil pressure acts exactly the same as before and engine seems to run just as good, only thing i changed while reassembling was i changed my valve lash from what i originally set up with.

i had read before that when breaking in a cold engine to set the valve lash .002 looser than what your hot lash will be, aparently this is true.... for an iron headed iron block, for an iron headed block with aluminum heads aparently you should set the lash .006 TIGHTER... so i did that and am seeing no issues so far...

im hoping the issue possibly did just come down to an overev or possibly a faulty pushrod or myself just setting up the lash far too loose and beating up the valvetrain too much we will see when i actually have time i will run it for a good while and pull the valve covers and check my lash when hot

BTW heres a good article i found about setting valve lash Valvetrain Tech: Lash Is Much More Than Just A Little Gap


It's NOT true. I've never seen any engine loose lash as it warms up. Never. I don't know where that started, but I've never seen it happen.