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timkins
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Posted 2 Years, 3 Months ago #1
I have a 78 350 Chevy truck engine installed in a street rod. The engine has about 65 lbs of oil pressure at startup and settles down to about 35-40 around town. I recently did a compression check and all of the cylinders were in the 110-120 lb vicinity. Number 1 cylinder is using a little bit of oil, enough to show on the plug but not enough to foul it. Would replacing the oil seals correct this problem? I am not sure of the total mileage on the engine as it was in the street rod when I acquired it.
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Jeffie
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Posted 2 Years, 3 Months ago #2
Hi Timkins welcome to the forum

I think changing the oil seals would be good idea.
daddyspaz
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Posted 2 Years, 3 Months ago #3
hi guys,
in the 70's gm had problem with the way heads were drilled. oil fouling can be caused by valve seal but real problem is the guide is drilled off.

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