Here is a thread from 2001 where Larry admits to knowing that a pilot bearing can be installed in a 300 crank.... and declares the thread to be a ' gem'...

http://www.peachparts.com/shopforum/showthread.php?t=24799&highlight=pilot+bearing

In Rleo's post about the costs of his conversion from auto to manual trans he lists the new pilot bearing at $10.....