Plug recommendation
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Plug recommendation

  1. #1
    Senior Member fleetimus's Avatar
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    Default Plug recommendation

    468 BBC, 12.9-1 compression, full roller. Pro Comp aluminum heads. Ran Champion 263 with iron heads.
    Last edited by fleetimus; 06-18-2016 at 02:36 PM.
    Is this real or the "Twilight Zone"?

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  3. #2
    Some guy obnoxious001's Avatar
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    What type usage? Lake boat, I would probably try an NGK 4091, which is a #7 heat range, non resistor plug, 14mm, .750 reach. Race only perhaps a step colder?

  4. #3
    Senior Member fleetimus's Avatar
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    Thank you Barry, same plug Scott recommended. Ordered them from Amazon. Nobody local had them
    Is this real or the "Twilight Zone"?

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  6. #4
    Senior Member Heatseeker's Avatar
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    Be sure to get the ones that screw in fleet. The hammer-in type are tough on them aluminum heads!😂

  7. #5
    Senior Member Oldsquirt's Avatar
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    Quote Originally Posted by fleetimus View Post
    Thank you Barry, same plug Scott recommended. Ordered them from Amazon. Nobody local had them
    Believe it or not, the Pep Boys near me carries them.

  8. #6
    Just Me snoc653's Avatar
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    Just be sure to use anti-sieze on the threads. Hammer out plugs are even harder on heads.
    So many projects, so little time

  9. #7
    Some guy obnoxious001's Avatar
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    Quote Originally Posted by fleetimus View Post
    Thank you Barry, same plug Scott recommended. Ordered them from Amazon. Nobody local had them
    Not very surprising to me.

    Summit has them also, it's a "racing" plug, keep them on the shelf for engines I build. Blown and turbo engines get 8 or 9 heat range, depending on usage.

  10. #8
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    Default Local?

    Quote Originally Posted by fleetimus View Post
    Thank you Barry, same plug Scott recommended. Ordered them from Amazon. Nobody local had them
    Riebes has 11 of them on hand. $2.93 each. Is that local enough for you? Probably a better price too.

  11. #9
    Senior Member fleetimus's Avatar
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    Riebes in Auburn said they didn't have any yesterday
    Is this real or the "Twilight Zone"?

  12. #10
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    Would you suggest the same plug for the same engine with 10-1 compression?

  13. #11
    Some guy obnoxious001's Avatar
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    Quote Originally Posted by nos1967 View Post
    Would you suggest the same plug for the same engine with 10-1 compression?
    Yes,, I use 7's on regular normally aspirated, pump gas engines.

  14. #12
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    [QUOTE=fleetimus;4176402]Riebes in Auburn said they didn't have any yesterday[/QUOT
    Fleet I get the R5672A-9 at Napa in Loomis or Rocklin...seem to work fine

  15. #13
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    X2 on the 7s
    Last edited by oneboat; 06-21-2016 at 02:58 PM.

  16. #14
    Senior Member fleetimus's Avatar
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    Pulled #1 & #2 plugs. Tang is flattened. #7 was not completely flattened. Quit checking them for now. Very frustrated
    Is this real or the "Twilight Zone"?

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