Good Plugs for Panheads . . . L92YC

The Champion L92YC has just a bit longer reach with a few more threads - it gets your spark in the combustion chamber a little better.  The stock-style plugs are slightly shrouded.  I think it starts better with these - others say it too.  If you have the heads off, you can screw one in and kinda see where you're at . . . ok with standard compression pistons, but you should double check anything with big domes. 

Applications include: 

Points w/5 ohm coil (standard coil)

Magnetos