Manifold vacuum port

Discussion in ''Da Nailhead' started by WhiteRiviera, Jan 26, 2010.

  1. WhiteRiviera

    WhiteRiviera Well-Known Member

    Hello guys,
    I removed the intake on my 401 to replace the gaskets and cut out the dividers to get the famous "doc dual-plane intake". Now ive seen that the tee-fitting, where the power brake vacuum is connected to, was already sheared off completly. Can anybody tell me where I can find a new fitting, for a 1963 Riviera?
    I attached a picture, to better explain what I mean. :TU:

    Thank you.

    Greets
     

    Attached Files:

  2. doc

    doc Well-Known Member

    Bastian, Well , pard , you need to cut the other side of that manifold out.... be sure to leave the center divider in... I probably have one of those fittings laying around, send me your address....
     
  3. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Any auto parts store will carry a vacuum nipple fitting that will work for you. First, you need to get the old one out, it's sheared off. Should be easy enough.
     
  4. WhiteRiviera

    WhiteRiviera Well-Known Member


    I took the picture just after I cutted one side out, had no time yet to finish both sides. Yes I will leave the center divider in, I just want to grind everything a bit more out, to better match my carb spacer for the holley carb.
    Thanks for your offer, theres only a problem, Im not living in the U.S.
    Ill send you a PM. :beer
    @Larry:
    I tried already a few local car part stores, had no luck yet, here in Germany.
    The old fitting is already removed from the manifold.
     
  5. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member


    Try a hardware store. It's a brass fitting. You should be able to find it.

    http://www.fastfittings.com/hb-male-adapter
     
  6. doc

    doc Well-Known Member

    You are forgetting just one thing Larry,,,, where he is everything is metric.... that fitting is going to have to be 1/8 pipe thread American....or 1/4 pipe thread American.....[in inches]:Brow: :Brow: :laugh: :laugh:
     
  7. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Doc,
    I don't think everything is Metric in Europe, but it will be more difficult for sure. Maybe we should just put one in an envelope and send it to him.:Dou:
     
  8. doc

    doc Well-Known Member

    That is what I was thinking,,, but I dont have his address.... I think I have some of them laying around in the shop.....
     
  9. ahhh65riv

    ahhh65riv Well-Known Member

    If I had a American car in any other country than North America, my best resource for these kinds of things would probably be a Grainger Catalog or McMaster Carr, or the like...

    I would probably have every page marked and dog eared and wore out.

    It's good that Doc is such a nice guy to give away free parts. That works too! Hey Doc! Can you send me your catalog???:laugh: :bla: :moonu:

    Erik
     
  10. elvislives

    elvislives Riviera diseased

    Hey guys,
    My apologies for taking you back to subjects long gone, but is the performance gain by using the Doc Dual Plane method a low RPM torque deal, or a higher RPM HP deal?...or both?
    I read past posts, but may have missed a few. I read the gessler website and their flow% claims, but I am not smart enough to know how a flow % increase translates into torque or HP increases.
    Does it affect idle or am I just being a moron now?
    Thanks
     
  11. doc

    doc Well-Known Member

    Dave, the difference is in all rpm ranges.... doesnt affect idle at all.. nor gas mileage....
     
  12. elvislives

    elvislives Riviera diseased

    Hey Doc,
    Would you describe it as responsiveness or just simply more torque and HP

    Thanks for taking the time
     
  13. CameoInvicta

    CameoInvicta Well-Known Member

    I've done the Doc-Dual Plane mod, but haven't had the car running yet.

    It should improve performance (both HP and torque) in all RPM ranges, and I would also assume it would make it a little more responsive.

    It is in effect a low rise dual-plane design. I'd be interested in seeing this done to one of the higher rises 2x4 manifolds. That ought to be screamer, at least until Marty releases his intake.
     
  14. doc

    doc Well-Known Member

    Well,,,. I am a simple guy....:laugh: :laugh: Its just more brute power....:Brow: :Brow: A a nailhead has brute power,,, its just more brute power....
     
  15. copperheadgs1

    copperheadgs1 copperheadgs1

    I have an NOS I got but it does not fit my car. Threads are smaller. Maybe it is correct for his. I would part with it for What I paid and shipping. $10 plus. Still in GM wrapper. It is steel as well not brass.
     
  16. WhiteRiviera

    WhiteRiviera Well-Known Member

    Thanks for your offer! But Doc already sent me his parts!
    Thanks again to you Doc, there are not a lot of guys outside like you are!! :TU:
    Doc, Ive sent you a PM!

    Bastian
     
  17. funkyriv

    funkyriv Well-Known Member

    Way to go Doc! :TU:
     

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