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  #11  
Old 05-19-2017, 02:06 PM
EZ Nova EZ Nova is offline
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Thanks guys.

So know one know what a small "2" mean in the casting number?
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  #12  
Old 05-26-2017, 10:24 PM
black69 black69 is offline
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Quote:
Originally Posted by EZ Nova View Post
Thanks guys.

So know one know what a small "2" mean in the casting number?
I don't think it means anything. All I could speculate is they assigned that pn ahead of time in GM documentation, and the size of the 2 could have given engineering a way to run 2 different block designs with the same frozen pn they could not change. That's all I can think of. Small 2 could be first run, and if they had problems, then the large 2 is the second run before the block was released for use in the camaro and the 2 vettes. Who knows. Odd things happen to low production special things.
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Old 10-21-2017, 12:44 AM
Peter426 Peter426 is offline
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Quote:
Originally Posted by markus37 View Post
Yenko was assigned rights in 1974, began producing blocks in 1976 and continued thru about 1983.
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