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  1. Thor454
    Oct 23rd, 14 12:34 PM
    I am in the process of rebuilding a mild 454 after only 12,000 miles due to excessive oil consumption of 1qt./200miles. On initial inspection by a very well respected machinist/builder, he stated the cylinder bores, moly rings, new bronze valve guides all look normal, which makes him wonder why the excessive oil consumption. The motor NEVER smoked on acceleration, deceleration or on start up. I tried 2 Edelbrock manifolds and 3 different gasket sets believing the intake and sealing was the issue.

    The questions are: Can an engine produce too much vacuum to the point that the PCV valve sucks oil vapor back into the QJet carburetor, and causing excessive oil consumption And has anyone else had any issues with Proform Chevrolet valve covers not having adequate baffling? and contributing to oil consumption? The machinist did NOT like the baffling on first inspection

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    Ashland, Nebraska
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