Pieces of steel in cylinder??

Yeah those cylinders look pretty tough. All about trying to save the short block when you can.

Can take a little WD-40 and a Scotch Brite pad by hand inside one of those cylinders and see what cleans up and what is left behind. Wipe it up with a paper towel quick so it does not run down into the rings.

The biggest killer is what steel got down into the ring grooves, almost impossible to get that rinsed out of there, and it is going to be the hardened steel from the seat exploding.

Wish there was better news, you know what you got to do.