Re: V8 spark plug fitment?

Posted by PackardV8 On 2016/8/13 17:31:15

IIRC my 56 Executive had Autolite 66 in it when i got it. They ran just fine too for about 12K miles or so.

I would simply avoid Champion unless u can get OLD STOCK Champion plugs from the 50's 60's or maaybe early 1970's.