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I would say offhand that those do not look like SS sleeved calipers. I don't see the edge where the cast iron ends and the SS starts, and bored (from what I can see in the pics) look worn/corroded in a way I would be surprised to find in SS sleeves. When I took my sleeved ones apart after sitting for 8 years, they were still shiny.
-=Boston!=-
I have to both agree and disagree here. I also do not see the step
or groove between the sleeve and casting, but the picture is not totally clear.
When I openned up my SS sleeved calipers, all 4 had similar scoring
on the bores. reference my second picture above: http://nhvette.homeunix.com/ftp/in/brakes/brakes_05.jpg
I'm told this is from rotor runout pumping the piston back and forth.
It looks worse than it is, and polishes out easily enough.
When in doubt, buy new ones - I guess.
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
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