Converting the Banger motor from 6v to 12v

I've got a cool old 6 volt early Mallory/Holley coil and early Mallory distributor on my pre-WWII styled, 4 banger powered hot rod project.

I love the look of my current 6 volt coil on my firewall, but i'm thinking of converting to 12 volt negative ground, from current 6 volt positive ground. Reason: i drive the hell out of my cars and 12 volt is just easier to deal with out on the road.

QUESTIONS:

1) I really dig my coil and don't want to change it. Can i run this 6 volt coil at 12 volts? I assume i'll have to switch polarities when i convert to negative ground (right now the positive runs to the points) ?

2) Know anyone who converts early generators to 12V alternator inside?

Appreciate any help and input. Thanks,

-scott noteboom

 

search the earlier threads on the subject... and as for your coil maybe a good ignition ballast resistor might work to drop the 12v down to what the coil will tolerate...

 

found right ballast resistor and will give it a try. thanks...

-scott noteboom