Jerry, I don't think that would work well on a block filled with coolant. The coolant would get between the block and the sleeve, and possibly escape at the bottom of the sleeve if it wasn't press fit there. Even if you could seal the bottom of the sleeve, it may be next to impossible to remove the sleeve (assuming you wanted to) once the engine had been run and coolant baked between the sleeve and the remnants of the cylinder walls. Also, the block strength might be compromised without original metal between the deck and the bottom of the cylinders.