Let me start by saying i don't know anything about this topic, nor am I taking sides on the matter...but from what i can tell the images simply show changes to the outward appearances of the blocks over the years, small casting details, etc... How do any of the photos show the actual composition of the iron the blocks were cast from was ever changed? From what I can see, they don't. It would be like posting pics of 67 and 68 camaro fenders and saying because there are outward visible differences, the composition of steel itself must have changed.
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Joe Barr
Last edited by camarojoe; 12-06-2022 at 02:18 AM.
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