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Old 07-12-2016, 06:43 PM   #4
Stewart Way
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Join Date: Aug 2003
Location: Atlanta
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Default Re: 6.0 LS alum block sleeve replacement

Thanks Mike
That appears to be the method being used on this repair. There was no damage to the aluminum but rather damage to the bottom of the existing sleeve when the boring cutter went too deep into the cylinder and hit bottom. What threw me was these grooves are actually rifling or threads so I just wondered if these sleeves screwed out. I did google and found the sleeves are cast in place so don't understand why they are threads and not just circular grooves. Guess its cheaper to cut a continuous groove rather than several circular grooves. Like I said, I know very little about these modern GM engines being an old Mopar guy.
Thanks again.
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