I may be totally off here, but one method which i have heard about for pulling the sleeve from bellow is to fabricate a plate with exact diameter of the piston, then weld it along the bottom of the sleeve and bore a hole in it to pump grease in you can put around 10-15 tons of pressure on that sleeve, but theres a catch, the hydraulic pressure will also be pushing the sleeve against the wall of the block cleating more friction. i had a dodge intrepid which i used this method to free the seized piston with i screwed a grease gun hose into the spark plug hole in the cylinder head and pumped away at it. it unstuck that piston AND managed to unstick two more pistons at the cost of warping the crankshaft badly. LOL