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Old 01-14-2014, 04:51 PM   #1
jks67ss396
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Join Date: Nov 2012
Location: DFW, TX
Posts: 298
5.3 oil pressure... too high?

Hey guys

I took my first long freeway trip with the 71 with the 5.3/4l60 installed.

love it! and decent power

but, im trying to understand my oil pressure.

the truck was originally a 292 I6. My understanding is that the stock oil pressure gauge for I6 and sbc is 0-60psi and for the bbc 0-80

So. at idle warmed up, its about halfway up the gauge/dead center. so Im taking that to be 30 psi

at 2000 rpm/cruising freeway, im at about 45-50

at one point, i kinda got on it to pass a slow moving car and the gauge went over to full range. im assuming thats 60 psi

Ive always thought that is supposed to be around 10psi/1000 rpm

Id say passing, i got up to 4000 rpm, definitely not higher than that.

So im wondering if my oil pressure is a little high or if thats normal for these 5.3Ls.

my engines got about 75k miles on it, so its not new

thoughts?

what about you guys... what are you seeing at idle/cruise/passing?

thanks!
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