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Thread: What Spark Plugs for this 377 sbc

  1. #1
    Junior Member SHOW GUEST
    Join Date
    May 2003

    What Spark Plugs for this 377 sbc

    My father passed away and a 73 panel wagon was left to me with a 377 sbc that needed assembly. It is now assembled and im looking for plug recommdations. 377 350 block bored to 400 with 350 crank..10.5 comp with afr 210cc heads will run pump gas 750 holley with bow tie chevy intake. Jesel 1.7 roller rockers with roller cam and 7al ignition and distrubuter. This car will be street driven with no power adders. Just looking for a good starting point in plug range...any other info needed let me know and I will add.

  2. #2
    Senior Member RACING JUNKIE curtisreed's Avatar
    Join Date
    Feb 2004
    I would try the Autolite 3922 that they recommend on their site. It is on the cold side, so you should be safe and if it needs some more heat in the plug or you cold foul them you can go hotter.


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