First it lifted the top ring land, then the piece bounced around in there and tore things up. It did that in two cylinders on the odd side...this is the worst one.

Luckily everything else looks OK for the most part. One quench pad on one head did get chewed up slightly, but it looks like it might be OK with a little finessing and smoothing out.....although brand new (factory aluminum) heads are dirt cheap....only about $200 with springs and valves...I might not bother even looking at them.

A set of pistons and probably rods (the bearings don't fit tightly in the rods, so you know this thing detonated) and it'll likely be good to go again. I don't think these powdered metal rods can be resized so they're probably junk.