Autolite 437 plugs

Not quite what I asked. The Autolite plug has that black base I like, and I seem to be allergic to Champion plugs. So, anyone used the 437s?

If you want a hot plug, use Champion H12.

Hello all,

Has anyone ever tried Autolite 437 spark plugs in their Cord?

I understand them to be similar to the Autolite 216 plugs but with a slightly longer reach into the combustion chamber and a hotter rating.