Later V-12 spark plug recommendations

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Hello all,

I mentioned this in my carburetor thread, but thought it would be better to create something separate. I am in search of recommendations on which spark plugs would be best for my 1936 1603. It currently has Autolite 458 installed, of which I can find easily, but wanted to make sure that this is the correct plug, and not just one that will fit/work.

Thanks for any advice!

Chris Williams

[Author nameAuthor names are only available to PAS members.]

I run Autolite plugs in my car, but it’s been jetted for modern fuel, so the heat range may be off for your application. I’ll check and post tomorrow. Ed.

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