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#1
07-25-2022, 04:01 PM
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Chevrolet doesn't seem to care much about 53-year-old engineering info. Plenty of Chevrolet engineering documentation was published in the Chevrolet by the numbers books.
Today you can visit the GM Heritage Center and request a part drawing. If they can locate it, they will provide a copy. I have the 2022 Chevrolet Performance catalog. The ZL-1 block casting is noted: DISCONTINUED-Check dealer stock for availability. I am curious as to what the difference was between the 3946052 and 3946053 cylinder blocks. Put me down for $20 US.
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Learning more and more about less and less... 
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#2
08-01-2022, 03:24 AM
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Quote:
GM will not provide copies of prints. If they can find it, you may look at it and take notes.....
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Kurt S - CRG
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#3
08-01-2022, 05:06 PM
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Quote:
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Learning more and more about less and less...
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#5
08-01-2022, 06:15 PM
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Chevrolet gave the rights to Yenko to purchase ZL-1 blocks from the Winters Foundry in Canton Ohio. (with some restrictions).
The part number listed is 3952318 The letter is dated June 7 , 1974 signed by F. A. Duco , Director, Manufacturing Sales
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Rsconv68 (08-02-2022) | ||
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