GMT 800 & Older GM General Discussion 2006 & Older Trucks | General Discussion

Identifying pre-04 blocks?

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Old May 31, 2011 | 09:12 PM
  #11  
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From: JunkYard
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Originally Posted by durty
Well I ran the crankshaft casting number, #12552215, comes back to a 99-00, other than it having the thicker crank flange are there any downsides to it? I plan on running a th350 behind it and a s480 in front lol
Actually thats better. You won't need to worry about a spacer to run the 350 trans
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Old May 31, 2011 | 09:13 PM
  #12  
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From: JunkYard
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Originally Posted by 1Bear
Just as 1FastBrick was saying, you can see the location of the Julian Date Calender and stamping area here in this picture of Copper&Black's BUILD
Thanks I haven't made it to an actual computer yet to upload pictures. I took them of the rear too.
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Old May 31, 2011 | 09:42 PM
  #13  
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Awesome, thanks for the help guys
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