Are they full length or just chamber sleeves? Out of curiousity why do you want to remove them? If they are soldered in it was probably done for a specific purpose, maybe because of heavy pitting or something else. If they are simply soldered in place I would say you could remove them by heating the tubes but it will be messy. The heat would most likely knock the ribs loose too and you would have a nice
mess of solder on the inside of the tubes once you knock the sleeves out. If you do take the sleeves out and clean the bores up, I would replace the tubes with custom fit Briley tubes (maybe those are what are soldered in even, who knows). Good luck!
Channing
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