The race wet blocks have a provision machined in the sleeves to be removed and replaced with a sleeve puller.
I use to see it at the Winternationals years ago before the billet blocks replaced the race water blocks, the good pit guys could have them out and the new one in place in under 10 minutes thumbs

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)