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Old Jun 18, 2022 | 02:19 PM
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James71Cutlass
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Oil Pressure
Just wondering what the oil pressure gauge should read for my ‘71 Rocket 350 engine when it’s warm?

Thanks.
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Old Jun 18, 2022 | 02:35 PM
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oldcutlass
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Some pressure, rule of thumb is minimum of 10#'s per 1000 rpm.
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Old Jun 18, 2022 | 02:37 PM
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James71Cutlass
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Originally Posted by oldcutlass
Some pressure, rule of thumb is minimum of 10#'s per 1000 rpm.
Okay. Thanks.
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Old Jun 19, 2022 | 04:48 AM
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olds 307 and 403
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What is it reading and what weight of oil?
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Old Jun 19, 2022 | 03:37 PM
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Fun71
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Originally Posted by James71Cutlass
Just wondering what the oil pressure gauge should read for my ‘71 Rocket 350 engine when it’s warm?

Thanks.
The pressure will vary depending upon the RPM. My engine has 35-40 or so at idle and 45-50 above 2000 RPM.
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Old Jul 17, 2022 | 12:27 PM
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My original factory motor with 15/40 has at idle in gear 15-20psi depending how hot and driving down the road about 45-50 hot
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Old Jul 17, 2022 | 01:42 PM
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oldcutlass
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Your oil pressure is fine, nothing to worry about..
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