Block identification

DavidSam0230

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Jul 9, 2018
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DavidSam0230
I have a 67 Chevelle SS 396 with what I believe to be a 427 block in it. The motor is still in the car but will be pulling it out this weekend. The only numbers I found was 457682575 stamped on the front drivers side of the block. Can anyone give me some info on it? Thanks a lot
 
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