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    1. #1
      Join Date
      Jan 2009
      Location
      So-Cal
      Posts
      17

      Header clearance/ 90 degree plug caps

      Here is the deal. I have a small block Chevy and just installed some new stainless headers from Dougs. They route differently than the old headers and now the clearance between the end of the plugs and headers has become an issue. The header tubes run right over the top of the 90 degree plug caps. Is there a special shorty spark plug, or some trick I could be missing?


      Last edited by Ratfink; 04-04-2010 at 06:22 AM. Reason: pick added


    2. #2
      Join Date
      Oct 2004
      Location
      Indiana
      Posts
      17
      Accel makes shorty plugs.

    3. #3
      Join Date
      Mar 2010
      Location
      Central IL
      Posts
      258
      Do you have angle or straight plug heads. Some headers are not compatible with angle plug heads.
      Sean

      The difference between stupidity and genius.... genius has limits

    4. #4
      Join Date
      Jan 2009
      Location
      So-Cal
      Posts
      17
      Quote Originally Posted by LSx_88_Ciera View Post
      Do you have angle or straight plug heads. Some headers are not compatible with angle plug heads.
      Straight plug heads. I'll look into the accels. Thanks.

    5. #5
      Join Date
      Feb 2009
      Location
      muggy midwest
      Posts
      533
      Country Flag: United States
      Accel shorties are ****ty if you are looking for multiple heat ranges....they only offer one heat range. I built a 600+ hp 434 with Titan (NX Nitrous) plate system with jetting up to a 750 shot and I had a HUGE issue with the Stahl headers for the Brodix 11X heads I put on it. I have part numbers for three different NGK shorty style plugs to run if you are interested...I'll have to dig up the customer file I have on the car I built, let me know. These plugs were for extended reach though-they make them in various heat ranges for standard SBC combustion chambers too however. -Jabin
      "...if at first you don't succeed, try again.
      If you still don't succeed, then quit-no sense being a damn fool about it..."
      -W.C. Fields

      HARNESSWORX
      (formerly gmachinz)

    6. #6
      Join Date
      Apr 2007
      Location
      New Jersey
      Posts
      558
      Country Flag: United States
      Looking for a shorty plug from NGK if they are out there. I have the same issue with burning boots. I need a cold plug im running the BKR7e plug right now
      Doug L.
      68 RS/SS Conv. LSA/T56.
      67 RS Coupe LS2/T56 named "NutKse"

    7. #7
      Join Date
      Nov 2008
      Location
      Lawrenceburg, TN
      Posts
      4,098
      Country Flag: United States
      Accel makes a short plug and if the boot is really close to the header you might have to run their ceramic boots with the Jacobs' 8.5mm silicone plug wires, the ceramic boots can sit right on the header without burning and creating misfires





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