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Old 07-23-2008, 06:49 PM
  #4  
coloradoracerguy
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Join Date: Dec 2007
Location: Morrison, Colorado
Posts: 120
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No, you cannot sleeve a 366 or 427 truck block to a 4.5" bore. You'd be into the water jackets. The last one I had sonic checked had a standard bore and the thickest part of the cylinder walls was only .167". You need to have siamesed bores for a 4.5" bore, unless the block was already made with a 4.4" or larger bore.


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