Possibly a 4-cylinder HO horizontally opposed, and water cooled, so maybe a
Subaru engine.

Like the others have commented, it's likely a valve head separated from the
stem and was being pounded into the combustion chamber by the piston.. for
quite a while, it seems.

I've seen pistons with valve heads imbedded in the tops of the pistons
before.. but somehow, the valve head just kept glancing off of the surfaces
it was contacting in this engine.. not easy to visualize in a HO engine
cylinder, though.

The 2 heads may not have been on the same engine when the failures
occurred.. just guessin'.

--
WB
..........


"Bob Engelhardt" wrote in message
...
There were 2 heads at the dump, each for 2 cylinders - from a a v4 engine
I'd guess. Each of the heads had 1 cylinder badly "burned", as shown.
Anybody know what happened?

Just curious,
Bob

http://home.comcast.net/~bobengelhardt/EngineHead.jpg