Sleeves?
 

Does the power stroke use sleeves? I noticed in another thread someone mentioned boring out the cylinder for a rebuild. Just curious.
Also,what is the most common mileage that a rebuild is in order? (I realize there is gonna be some variables)

No
 

You can but they dont come that way. On the other side though the international versions of the Powerstrokes are sleeved. On a well taken care of 7.3 400,000 is a good starting point. But I have seen several that needed them around 250,000 and less if not taken care of.

You can sleve them but most just bore out to a max of .050... Mine is .020 and my new motor will be that much too at least...

I've got 400,000 on mine. She still has some life left to her but will need a rebuild in the next year or so.