[Y-Blockhead]

Originally Posted by Bob Bidonde

I believe that babbitt is non-magnetic. However, cotter pins fatigue and wind up in the pan. What else is magnetic that would stick to a magnetic drain plug?

Originally Posted by redmodelt

As pistons go up and down the rings take off microscopic scrapings "the black fuzz" of the cylinder walls, esp prevalent after honing the cylinders.

I think he is asking about the transmission drain plug.

I agree, McMaster-Carr has magnetic plugs. I also use one in my Mitchell O/D and rear end.