Pieces of steel in cylinder??

Righty Tighty said

Just one seat fell out - the #3 exhuast. Funny thing is, the pieces of the seat that were in the cylinders were magnetic. This material around the crank isn't magnetic. Most is very, very tiny and spherical. Like grit. I'll post up some pics of all the bearings and such a little later. The driver side head was all pretty burned up looking, especially around the #3 and #5 valves. I'm guessing due to the missing seat? Passenger side head looked near new.

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Had a 73 van, 360 with a head job done at some point... no.5 exh seat fell out, scar'd the piston and then broke and went out the tail pipe, it was down on power and 10 psi lower. Installed height jumped, surprised it didnt let the keepers out... but the motor was fine.
Unless the piston has a hole in it... there is no way that seat could get into the oil.
So whoever put it together... built a time bomb. Smearing bearings takes effort imo.
Did it even rotate after assembly, probably not... but the 4.1 mopar starter dont care..