Thread: 406 small block
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Old 09-16-2013, 06:18 PM
  #3  
RonOwensRacing
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Join Date: Oct 2004
Location: florence ky
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The GM blocks crack real easy if you put a lot of compression in them .
the 400 blocks not good for a lot of power.
Well i have broke a lot of them through the years anyway.
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