NGK spark plugs

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Wanted to try the NGK A6 spark plugs that were suggested earlier (March 18, 2005 post). The motor in my 1936 Ford pickup is a 1938 truck motor. Anyway, NAPA says the A6 is an obsolete NGK plug. Did some more checking and found the following sources for the NGK A6: 1. motodepot.com 2. mfgsupply.com Has anyone bought from either of these companies, or know of a good source for these plugs? Thanks, John Dugan
 
There was a lot of support for the NGK B6L in a thread several months ago. What happened to that one? Is it no longer in vogue?
 
One set of NGK plugs solves the plug problems. The other companies plugs are like razor blades, you keep replacing them. G.M.
 
Re: NGK spark plugs/ GM

what NGK plug can i get for my 36 using D-21 Champ now. 18 mm plugs not 14 mm. ken ct.
 
Re: NGK spark plugs/ GM

Ken I don't have the #s at home the 37 to 48s use NGK 4 BL I believe the 36 uses a NGK 6 BL or just a plain #6 . I don't remember but someone else should know. G.M.
 
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