Spark plug Question...better spark?

39portlander

39portlander

Well-known member
I get a monthly auto parts flyer with some good coopin's:D I always see spark plugs on sale with platinum (good), double platinum (better) and iridium (best).

Is there a good, better, best/iridium plug option for the Flathead that would work, or just stick with the Ol' champions.

I hope this does not turn into a (best oil) thread. Thinking Bubba/Walt ect. may have some good input, thanks. Scott
 
Not that I know a lot, but.....

Aren't the high end jobs built for hyper-extended use and copper used for making bigger spark?

I would think that we all want the advantage of the bigger spark.

Besides - be honest....can you really keep your hands off of them for 100,000 miles?
 
The reality of it all is marketing pays off..:eek:

The spark plugs job is to ignite the air fuel mixture in the combustion chamber.
Assuming everything is factory ie: carb, camshaft compression etc there is nothing on the planet better than a factory rated spark plug per engine application.

And then the discussion starts!!

Plug construction may be changed or modified to fix a particular problem. Newer plugs have a coating to help them not stick in the engine , heat range may be changed to work better with a engine change , tip construction may be adjusted to better meet the flame front.
However all changes are in place for a particular problem...

One example ( out of many) would be the addition of a five speed trans mission. The 5 speed lowers the cruise rpm of the engine ( in some case one half) and a different heat range plug may be needed for the slower speed of the engine . ( more than likely one range hotter )

If we think the oil discussion is long then the plug discussion is every bit as long.
 
i took walts advice from a previous thread. engine running rought not ideling. replaced champion 10 with autolite 437 . no puffing or missing, idels great. thanks barners. dick t. how many wonder plugs have we seen over the years? i remenber seeing alot.
 
I ran AL 216's for many years and liked them. When my flathead started to burn a little oil, I changed to 437's, and they run cleaner due to being a hotter plug. Never had any luck with Champion's.
 
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