you need to bannish them to the recycling bin forthwith, and count your blessings that they made it there intact
but they do make for nice seat-savers if you're going to polish the combustion chambers, grind the top edge down to a taper that will allow your polishing tool easy access to the areas surrounding the seats... you only really need to taper 1 intake & exhaust
they also make for good jack stand pins, engine stand rotation pins... i suppose the list goes on
just don't re-use them in your engine!
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