Thread: 73 SD-455 TA to be made road worthy again after sitting since 1979
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Old 04-08-2024, 02:16 PM
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PAUL K PAUL K is offline
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I hope the OP doesn't mind but I thought these pictures would be of interest.

A picture of an GM SD valve showing it's tulip and dished face.

A picture showing where the PN is usually stamped on the valve stem

A picture of where I believe the head of the valve is mated to the stem
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