Re: Which up-dated spark plugs for my 8n?

In Reply to: Re: Which up-dated spark plugs for my 8n? posted by Jeff in Maine on October 04, 2020 at 20:29:58:

Update: as there was still some confusion at least in my mind about the AL 437'S being re-numbered or similar but perhaps not with identical heat range to the 216's, I went to the source and spoke with an AL tech. The short answer is the heat range is identical, the only difference is the length in height of the electrode "projection". And for those out there who like me could make little sense of the heat range pdf that Bruce sent (also available at autolite.com), the 216's on line 15 of that chart are "short" projection, the 437's on line 16 (meaning, BTW, heat range) are "mid". And the AL tech confirmed that both are cross-compatible with Champion H-12's.
So, I will put the 216's in and hope Babe comes back to life!

Follow Ups:

• Re: Which up-dated spark plugs for my 8n? - Jack - Iowa 21:35:40 10/05/20 (0)

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