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Old 04-02-2004, 12:50 PM   #9
Paul72
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Join Date: Sep 2003
Location: Waterloo, IA
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No doubt that there are other forces that can cause cracks. I was only saying that 30 years of temperature fluctuations, along with the wall thickness inconsistencies, and uneven heat distribution, can also cause stress and possibly failure. My manifolds have been removed and replaced, which probably resulted in my condition, but who knows.
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'72 Chevy K20 - 383/4sp/205 - SOLD after 41 years in the family
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