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exhaust port specifications?

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  • exhaust port specifications?

    anyone have drawings showing the ports/bolt patterns of the LX9 and LZ9 engines, that you would care to share? I'm wanting to see if it is possible to make a set of dual pattern header flanges for my turbo LX9 that are semi "future-proof"
    Last edited by ericjon262; 09-30-2012, 11:03 PM.
    "I am not what you so glibly call to be a civilized man. I have broken with society for reasons which I alone am able to appreciate. I am therefore not subject to it's stupid laws, and I ask you to never allude to them in my presence again."

  • #2
    lz9 info

    Valve Guide Bore - Exhaust
    8.01 mm
    0.315 in
    Valve Guide Installed Height
    16.6 mm
    0.654 in
    Valves

    Valve Face Angle
    45 degrees

    Valve Seat Angle
    46 degrees

    Valve Seat Depth - Exhaust - From Deck Face
    8.9-9.1 mm
    0.350-0.358 in

    Valve Seat Depth - Intake - From Deck Face
    7.9-8.1 mm
    0.311-0.318 in

    Valve Seat Width - Exhaust
    1.70-2.0 mm
    0.067-0.079 in

    Valve Seat Width - Intake
    1.55-1.80 mm
    0.061-0.071 in

    Valve Stem-to-Guide Clearance
    0.026-0.068 mm
    0.0010-0.0027 in

    Valve Lifters/Push Rods

    Push Rod Length - Intake
    146.0 mm
    5.75 in

    Push Rod Length - Exhaust
    152.5 mm
    6.0 in

    Valve Springs

    Valve Spring Free Length
    48.5 mm
    1.89 in

    Valve Spring Installed Height
    43.2 mm
    1.701 in

    Valve Spring Load - Closed
    320 N 43.2 mm
    75 lb 1.701 in

    Valve Spring Load - Open
    1036 N 32 mm
    230 lb 1.260 in

    Valve Spring Total Number of Coils
    6.55
    Attached Files
    Last edited by grnrdragon; 09-30-2012, 10:54 PM. Reason: wrong file

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    • #3
      it uploaded, but doesn't really help, the drawings I would need would be of the cylinder heads, not the deck.
      "I am not what you so glibly call to be a civilized man. I have broken with society for reasons which I alone am able to appreciate. I am therefore not subject to it's stupid laws, and I ask you to never allude to them in my presence again."

      Comment


      • #4
        sorry wrong file. will try to find the right one.

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        • #5
          I'm trying to make header flanges, first post has been edited for clarity.
          "I am not what you so glibly call to be a civilized man. I have broken with society for reasons which I alone am able to appreciate. I am therefore not subject to it's stupid laws, and I ask you to never allude to them in my presence again."

          Comment

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