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Old 01-21-2011, 10:42 PM   #1
ATrain707
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oil pressure chevy 350

i have a 79 chevy 350, on the freeway the oil pressure gauge is around 40-45 doing 65. but today it kept jumping between 40 n 60 then went from 40 to 100 real fast then drop back to 40, what is the normal psi suppose to be? n the gauge is elec. so im thinking a bad ground or connection? or is it sumthing wrong with the pump? i dont know if anyone else has had this problem.

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Old 01-21-2011, 11:09 PM   #2
jakeblues652
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Re: oil pressure chevy 350

between 40 and 60 i like to see it. 100 lbs of oil pressure is NOT right.
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Old 01-22-2011, 08:22 AM   #3
bigsnookmaster
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Re: oil pressure chevy 350

I would bet it's the guage or wire.
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Old 01-22-2011, 09:18 AM   #4
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Re: oil pressure chevy 350

common rule of thumb is that all you need is 10 psi for every 1000 rpm. In your case, I'd also bet the gauge or sending unit is faulty.
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Old 01-22-2011, 08:19 PM   #5
ATrain707
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Re: oil pressure chevy 350

ok thanx guys, ill check it. it my brothers truck and he was freakin out about it.
the other ? i have is where can find a chrome oil pan for a 92 chevy 350 block its has a driver side dipstick. i bought the motor from a guy who said the block was a 92 and the heads are from a 70s. i looked up the numbers on the block and it shows it a block from mexico 92 4 bolt main with a 2 peace rear seal but i cant seem to find a chrome oil pan for that year thats made for a two peace rear main seal and i also need to find a dipstick for that block i went to kargens and auto zone n they cant even order it. any ideas? the motor is going in my 68 chey c10
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Old 01-22-2011, 09:13 PM   #6
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Re: oil pressure chevy 350

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Old 01-22-2011, 09:55 PM   #7
ATrain707
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Re: oil pressure chevy 350

thanx i looked and didnt see what i needed summit only have oil pans with passnger side dip stick with 1pc rear main seal. lmc doent say if its a right hand or left hand dip stick or if its made for 1 or 2pc rear main seal i might have to call monday
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