Spark plugs

Discussion in 'Technical' started by Smitty, Mar 5, 2018.

  1. Smitty

    Smitty Member

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    Anyone have edelbrock heads on their 302? If so what plugs do you run, mine had champion Rc12yc in them.
     
  2. Krazy Comet

    Krazy Comet Tom

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    I've run those but like the Autolite 3924 for street and 3923 for racing... I have Trick Flow Twisted Wedges but almost all aftermarket heads use same plugs...
     
  3. Hotrock

    Hotrock Rick, an MCCI Member Supporting Member

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    I also run Autolite 3924s for all occasions in my AFR headed 302. I use a dab of anti seize on each plug.
     
  4. Smitty

    Smitty Member

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    Thanks for your input!
     
  5. Smitty

    Smitty Member

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    Thanks! I’m going to give the auto lite 3924 a try
     
  6. Acornridgeman

    Acornridgeman MCCI Wisconsin State Rep Moderator Supporting Member

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    Champion RC12YC is the cross reference to an Autolite 3924 ............ :)
     
  7. mojo

    mojo "Everett"- Senior Citizen Supporting Member

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    I use anti seize on my plugs too... and on many other bolts/threads where I think will make life easier, if/when I need to remove them.
     
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  8. Smitty

    Smitty Member

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    Engine before updates
     
  9. Smitty

    Smitty Member

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  10. bmcdaniel

    bmcdaniel Senile Member

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    I always ran Autolites in my Ebrock heads until last year. Bought a new set of Autolites because I need to run double platinum plugs with my EDIS ignition. Four of the plugs kept coming loose, the threads were undersized. Threw the boxes away before I checked where they were manufactured. Guys on SpeedTalk recommended NGKs made in Japan. They are some really nice plugs
     
  11. 72MAVGRABHER

    72MAVGRABHER Maverick Mechanic

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    I have Edelbrock performer rpm heads and switched to E3 plugs and never looked back. Almost 7yrs now still not fouled
     
  12. 71gold

    71gold Frank Cooper Supporting Member

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    I've been wanting to run some E3s but haven't read enough feedback info. yet.
     
  13. 72MAVGRABHER

    72MAVGRABHER Maverick Mechanic

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    I’m telling you, no gapping tri fire, they’ve been in the 347 for 10k miles and about 7yrs through thick and thin and it starts easier/quicker (assuming fuel pump has carried fuel to bowl) it was around $55 back then to buy 8 which I complained about lmao but it’s been an out of sight out of mind thing until I saw this thread haha
     
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  14. Maverick_Ian90

    Maverick_Ian90 Member

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    Are you talking the E3 Copper E3.42 plugs?
     

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