340 head gasket leaking with sleeves

I'm with Yellow Rose on this one..........the fact that that a couple of sleeves moves at all tells me they were not properly installed to begin with as in not bottomed out. To be honest, not sure if driving them down onto the step and then decking would work out. Since they have moved, you apparently have lost the press fit. Sucks to be sure!

It's executive decision maker time, re-sleeve the bad cylinders and go forward, or replace the block. I'd be tempted to sleeve and go; sleeves are not bad, just people who do them badly are.

Good luck!!