Topic: Determining Original Champion C-7 and7 Plugs


SteveC    -- 08-29-2010 @ 5:40 AM
  I'm curious about how to tell original NOS C-7 and 7 plugs from later remanufactured plugs. I'm assuming Champion continued to make them up through the '70s like Model A plugs. Much is written about the A plugs but I haven't seen anything much about the early V8 plugs.

I know both are two rib take aparts but can you determine originals by the size of the base hexes, knurling pattern, packaging. etc. I have a Rouge quality car that I'd like to show in Saratoga Springs next summer and if I can get original plugs in her it would be a nice touch. Thank you.


37RAGTOPMAN    -- 08-29-2010 @ 6:31 AM
  what year car is it, and what size engine,and is a pass or truck?
hope this helps 37RAGTOPMAN,an KEEP ON TRUCKIN,,,,!!!


SteveC    -- 08-29-2010 @ 7:59 AM
  '34 Vick, 21 stud original V8


Don Rogers    -- 08-29-2010 @ 9:19 AM
  Here's a comparison between #7 (1 piece), #7 (2 piece), & C-7


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