My typo I meant Autolite 3076.
You can order them from Napa or Sparkplugs.com



Rick

Where Are You From? Fremont, CA

Orig approved plugs for 60, 63, 66, 70 was Champion C7 .. Lots of hits in search for replacement plugs.

http://www.sparkplug-crossreference.com/convert/CHAMP_PN/C7

Another site
Champion C-7 spark plug replacement
C7 was discontinued & replaced by Champion 541 / RD16 which is a resistor type spark plug. D16 was non resistor equivalent.

Autolite 385 would be a colder plug than RD16 Champion.

Autolite 386 resistor plug same heat range as Champion RD16.

Autolite 388 resistor plug hotter same heat range as Champion D21.

If you want a non resistor type plug use Autolite 3116 or Denso L14-U.


NAPA as Rick said has plugs replacement plugs.

Where Are You From? Ottawa Ont

Do You own a car built by Durant? Dominion built 1932 614 Sedan