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av8or32

06-14-2009 04:19 PM

Pontiac guys.....oil pressure?

I've got a 69 400 and when I first crank it the pressure is about 60psi (idle)then, once it's warm (about 200 degrees) it drops to around 20psi (idle), sometimes less. Is this normal or do I need to start thinking about a rebuild. When I rev it a little it kicks up to around 30 then back.

Vegas69

06-14-2009 07:25 PM

Nothing wrong with 20psi at idle.

NOT A TA

06-14-2009 07:37 PM

seems OK to me

72blackbird

06-15-2009 10:41 PM

The rule of thumb is the same as other V8's- 10 psi for every 1000 rpm.

Geno

av8or32

06-17-2009 12:16 PM

Cool,

thanks for the help:lateral:

nonova0074

06-18-2009 05:27 AM

:thumbsup: thats around what my 74 gto has, and i am running a 70 gp 400 with #13 Heads

lewismd71

06-18-2009 08:21 AM

Quote:

Originally Posted by Vegas69 (Post 218322)

Nothing wrong with 20psi at idle.

:thumbsup:

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