Okay guys,
In the middle of an engine swap (more power.. or maybe the spun bearing in the current motor

one or the other) I pulled the pan off the new motor which was rebuilt about 13,000 miles ago. Just decided that since it was out that I could not put it in without new gaskets. Well what do I find but what looks like a bunch of chewed up pieces that appear to be a BLACK plastic.
Any body got any ideas as to where they came from? The fact that they are plastic bogels me.
Thanks,
Dan
p.s. I probably shouldn't tell you this but the motor is a small block
that begins with CH... please be kind.