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Thread: Heads single to twin sparkplugs

  1. #1

    Heads single to twin sparkplugs

    I have massive temptation to move from single sparkplug to twin however I don't plan get new heads and instead trying get machine shop to drill space for second one.

    Get some feedback but it sounds like they can do it but they are unsure how which is of course red alert but shop which are dealing with engines , polishing walves etc should be able do.

    Is there anyone who actually converted to two sparkplug head ans have some kind of guide ?

    It will be amazing as every penny counts in my project.

  2. #2
    Senior Member
    Join Date
    Dec 2010
    Location
    Wilmington, DE
    Posts
    1,464
    We get them done all the time. Just send them to our machine shop and they send them back with twin plugs. Performance Auto Works. Kearneysville WV. Near summit point racetrack.

    If your local shop is unsure how to do it, they’re not the shop to do it.
    A part isn't purchased until paid.

    The 9 Store LLC.

  3. #3
    Senior Member
    Join Date
    May 2006
    Location
    CT
    Posts
    3,005
    Bob Hirst at Anchor Atlantic in New Jersey just did a set for me.
    Tom Butler
    1973 RSR Clone
    1970 911E
    914-6 GT Clone in Progress

  4. #4
    There’s also Craig Garret up in MI who frequents “the bird” if you’re looking for him. He converted a set of 2.4T heads, that someone else previously twin plugged, to 2.2S spec twin plug heads for me. No affiliation just a satisfied customer.

    Stretch
    Registry # 3063

  5. #5
    Thanks guys, just only reason I'm based in Europe ? Anyone have some kind of how to that machine shop over here can do it ?

  6. #6
    Senior Member StephenAcworth's Avatar
    Join Date
    May 2011
    Location
    Chelsea, Québec
    Posts
    3,352
    1966 911 Coupe - Slate Grey - 304598 - still in restoration!

    Member #1616

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