Thread: What spark plugs
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05-22-2013 10:25 AM #4
I'm thinking "deso" = "Denso" as in Nippondenso... Heat range to equal what the "books" show for the stock plug in a 1973 BBC 454.
5/8 thread, short reach with a taper seat.
Champ could be Champ brand or Champion brand plugs..
I like an AC brand or Bosch in comparison.. but to each their own! LOL..





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Right after I posted yesterday it was down again, I don't think it's getting better.
Where is everybody?