Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Pistons dont fit in block.
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Old 10-07-2012, 07:46 AM's Avatar is online now
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251k rings will not fit GM factory pistons. Factory pistons require a "Shallow groove" ring. Consult an automotive machine shop or REAL auto parts store for correct cast iron ring set for the different VIN codes.
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