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Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine> Oil pressure issues this maybe some of the problem.
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Topic Review (Newest First)
12-31-2009 07:01 AM
sqzbox I wonder if GM knows this?
12-31-2009 05:39 AM
Steel That's great info!! Thanks for the quick study
12-31-2009 01:50 AM
4 Jaw Chuck Its a little known mod and few people know about the issue, thanks for brining it up again and showing the proper method to solve the problem!

With pics yet!
12-30-2009 09:32 PM
Oil pressure issues this maybe some of the problem.

I have seen on all GM rear caps SBC & BBC we have found then to be restricted because of the casting hangs in past the oil port of the oil pump and we have seen some that have been block 60%

Take a oil pump cut it off like the one on the right.

The cap on the left has been opened up to match the oil pump.

The cap in the middle had been marked with a marker showing how much has to be removed.

The cap on the right you can look in the oil port and see the casting blocking the port.

Even on the after market blocks they some times have to be touched up.

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