oil pressure question

furyus2 said

My 440 when cold has 70 psi at 750 rpm. at 190* it drops to about 25 psi. I know the whole 10 psi per 1000 rpm, but my concern is the Difference in pressure from being cold to hot. Does this indicate worn bearings? These readings are with a high volume pump, and a bottle of STP.
I built this engine 20 years ago.

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For what is worth, my teener 50 years old and over 100 thousand miles cold fires at 60 PSI after it warms up guess what; it drops to 20 PSI at idle. Perfectly normal? who knows but it still runs like a rabid dog. My 76 Shovelhead after rebuilding the top end; guess what 65 PSI cold, At idle 10 PSI whatermellon whatermellon whatermellon: no worries."Loose and wet" in my opinion trumps "tight and dry":confederateflag: