How to Properly Read a Compression Test Gauge?
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08-22-2012, 04:54 AM
Join Date: Dec 2004
Location: San Antonio, Texas
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The numbers should all be about the same.
Stock BBC's are typically low compression so don't expect high numbers. 125 psi is about it.
flat cam lobes and worn out bearings will be the biggest issue, and that will be hard to see at a salvage yard.
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