We always pressure test and skim the cylinder head when we replace a head gasket.  When the head gasket fails on a vehicle, the engine block gets so hot, it can crack.  These cracks are tiny and can only be seen when put under pressure, which is why we always pressure test each time.  Failure to do so can cause problems after a relatively short while. We would rather make sure the job is done properly and our customers are happy, than cut corners.

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