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#21
02-27-2023, 11:25 AM
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I have a 4 bolt block that came in a 1969 Grand Prix I once had. The block casting number on the back of the block was partially ground off and restamped. I seem to remember an article in the past talking about blocks that had this treatment referred to "H'ot Wiping" done to the cast #. Can anyone here provide any information about this? How and Why was it done?
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