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    Author Topic: For those with stealth heads  (Read 3740 times)

    Offline dodj

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    For those with stealth heads
    « on: May 28, 2015 - 02:27:07 PM »
    What spark plug should I use? Any recommendations out there?
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    Scott
    1973 Challenger  440 4 spd 
    2007.5 3500 6.7 Cummins Diesel, Anarchy tuned.
    Good friends don't let friends do stupid things. ........alone.


    Offline Chryco Psycho

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    Re: For those with stealth heads
    « Reply #1 on: May 28, 2015 - 07:33:34 PM »
    WHat does it suggest on the 440 Source site , I think it is a RC or RV plug champion plug
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    Offline mrwfp

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    Re: For those with stealth heads
    « Reply #2 on: May 28, 2015 - 07:49:02 PM »
    Source 440 recommended the extended length Champion RC12YC plugs when I bought their heads last year.  They have to be the extended length and not the regular ones.  Source 440 sells them and are the best place to get them.
    « Last Edit: May 28, 2015 - 08:02:41 PM by mrwfp »
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    Offline dodj

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    Re: For those with stealth heads
    « Reply #3 on: May 28, 2015 - 10:30:35 PM »
    Quote from: Chryco Psycho on May 28, 2015 - 07:33:34 PM
    WHat does it suggest on the 440 Source site , I think it is a RC or RV plug champion plug
    That's just it. They say they sell the plugs, but not what they are.
    Quote from: mrwfp on May 28, 2015 - 07:49:02 PM
    Source 440 recommended the extended length Champion RC12YC plugs when I bought their heads last year. 
    :2thumbs:
    Thanks mrwfp
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    Scott
    1973 Challenger  440 4 spd 
    2007.5 3500 6.7 Cummins Diesel, Anarchy tuned.
    Good friends don't let friends do stupid things. ........alone.

    Offline ireland383

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    Re: For those with stealth heads
    « Reply #4 on: May 29, 2015 - 11:33:02 AM »
    I run the RC12YC plugs in my stealths or autolite 3924 both were fine got them at wallyworld for cheap no need to use the source for them. :2cents:
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    1971 Plymouth Barracuda

    Offline dave73chally

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    Re: For those with stealth heads
    « Reply #5 on: May 29, 2015 - 11:56:15 AM »
    Good to know for the future  :thumbsup:
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    73 Challenger
    512 / 4spd / Hotchkis & QA1 Suspension

    Offline HP_Cuda

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    Re: For those with stealth heads
    « Reply #6 on: May 29, 2015 - 01:53:12 PM »

    Yup RC12YC plugs straight from 440source, although depending on your header selection it may be actually easier to install because they are longer.

     :2thumbs:
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    1970 Cuda Clone 440 4 speed - sublime green
    1970 Cuda 383 4 speed - yellow - SOLD

    Offline dodj

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    Re: For those with stealth heads
    « Reply #7 on: May 29, 2015 - 03:00:50 PM »
     :thumbsup:
    Thanks for the feedback guys. I want to install them saturday so I need to buy them locally
     :cheers:
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    Scott
    1973 Challenger  440 4 spd 
    2007.5 3500 6.7 Cummins Diesel, Anarchy tuned.
    Good friends don't let friends do stupid things. ........alone.

    Offline mrwfp

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    Re: For those with stealth heads
    « Reply #8 on: May 29, 2015 - 07:57:46 PM »
    Just make sure that you get the correct extended length plugs.  I bought a spare set of plugs from Amazon because they were cheaper but they were not the extended length plugs and would not work.  The standard plugs do not go deep enough into the heads to fire correctly.
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    Offline 1 Wild R/T

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    Re: For those with stealth heads
    « Reply #9 on: May 30, 2015 - 01:47:12 AM »
    Want a better plug?
    NGK 1273 BCPR5E-11 V-Power Plug
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    JS27N0B 70 Challenger R/T Convertible  FJ5 Sublime, Show Poodle w/90,000 miles since resto
    WS27L8G 68 Coronet R/T Convertible  PP1 Bright Red, Project
    RM21H9E 69 Road Runner Coupe R4 Performance Red, Sold...
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    Offline dodj

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    Re: For those with stealth heads
    « Reply #10 on: May 30, 2015 - 10:30:02 AM »
    Quote from: 1 Wild R/T on May 30, 2015 - 01:47:12 AM
    Want a better plug?
    NGK 1273 BCPR5E-11 V-Power Plug
    Why do you think it is better?
    My only experience with NGK is with my mercury outboard and found it ran better when I switched to equivalent Champions. I only switched because I had a hard time finding the mercury recommended NGK small engine plugs locally.
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    Scott
    1973 Challenger  440 4 spd 
    2007.5 3500 6.7 Cummins Diesel, Anarchy tuned.
    Good friends don't let friends do stupid things. ........alone.

    Offline 1 Wild R/T

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    Re: For those with stealth heads
    « Reply #11 on: May 30, 2015 - 11:46:12 AM »
    Quote from: dodj on May 30, 2015 - 10:30:02 AM
    Why do you think it is better?
    My only experience with NGK is with my mercury outboard and found it ran better when I switched to equivalent Champions. I only switched because I had a hard time finding the mercury recommended NGK small engine plugs locally.

    Because I've dealt with Chumpions that foul easily for to many years... I refuse to buy their junk...
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    JS27N0B 70 Challenger R/T Convertible  FJ5 Sublime, Show Poodle w/90,000 miles since resto
    WS27L8G 68 Coronet R/T Convertible  PP1 Bright Red, Project
    RM21H9E 69 Road Runner Coupe R4 Performance Red, Sold...
    5H21C  65 Falcon 2 dr Wagon... Dog Hauler...

    Offline Chryco Psycho

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    Re: For those with stealth heads
    « Reply #12 on: May 30, 2015 - 11:46:49 AM »
     :iagree:
     NGK have never worked well for me either
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    Challenger - You`ll wish You Hadn`t
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