Thread: 400 Sbc
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Old 04-05-2010, 07:46 PM
  #2  
zipper06
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RACING JUNKIE
 
Join Date: Jan 2006
Location: La.
Posts: 2,890
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Thrust surface on the crankshaft worn. Also possible but not likely the rear main block faces worn and letting the rear main slide back and forth.

JMO

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