Correct ohms of (points installed) coil

[52Cadillac]

On way home from GN I replaced my coil with one from advanced auto. Now that I'm home I noticed the ballast resistor is cracked all way through. What is the correct looking replacement, and what ohm size resistor should I be looking for?
Thanks, Mike

[J. Gomez]

Mike,

Since yours is a 12v system and if you have the standard ignition system any standard ballast resistor will do it, the MPL shows 1954-1958 use the same type. You can search for these at the auto part store web site although those will be generic, a Chevy place may have one that is real close to OEM look.

Good luck..!

[52Cadillac]

Thanks, will do.
Mike

[Dave Shepherd]

Not all 12v coils are the same, some have internal resistors so the external is not required, check that also, should be marked on the coil.

[52Cadillac]

Yes Dave. It said to use external resistor on coil. I have a pertronix coil with internal, and it says the resistance is 1.5 ohms. Somewhere I read another regular coil resistor was 3 ohms. Some under 1 ohm. My new or old coil doesn't say what's required.
Thanks, Mike