Hello.
Can overheating damage the sleeves (cylinders) in any way? Particularly at the lower part?

I'm replacing the head gaskets after running without water and my mechanic, who's never worked on a Maxima before, told me that, after overheating, engines with sleeves instead of a bored block may have damages at the lower area where it's supposed to be sealed and not let water and oil mix.

Is this a real risk in Maxima Engines?
It's a 1996 3.0 24v V6.

I appreciate the help.