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V11 Specification

Discussion in 'Spine' started by Dolittle, Jun 21, 2013.

  1. Dolittle

    Dolittle Just got it firing!

    Jun 4, 2013
    Likes Received:
    Hi All.
    Iam new to this site, I just bought a 03 v11 sport runs but needs work. I looked on this site and some one sayed not to use US valve settings. Can some one tell me what they are.
    Thank you Rich :blink:
  2. GuzziMoto

    GuzziMoto GT Reference GT Contributor

    Nov 7, 2008
    Likes Received:
    B'more, Md
    As I recall, the US specs were .004"(0.10mm) intake and .006"(0.15mm) exhaust. That is too tight in my opinion and is for noise control. World specs I think are .006"(0.15mm) intake and .008"(0.20mm) exhaust. Raceco specs are .008"(0.20mm) intake and .010"(0.25mm) exhaust.
  3. john zibell

    john zibell Moderator Staff Member GT di Razza Pura

    Oct 28, 2008
    Likes Received:
    Huntsville, AL
    Actually the US spec initially was 0.002 (0.05mm) intake and 0.004 (0.10mm) exhaust, the world spec is .004"(0.10mm) intake and .006"(0.15mm) exhaust. http://www.guzzitek.org/atelier/gb/1100 ... rMAJ01.pdf The 6 and 8 specification is for small blocks.

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