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  1. #1

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    Valve spring question - Color codes on OEM springs?

    I was assembling a cyl head the other day and decided to re-bag my valve spring collection as the writing was rubbing off some of the bags, and noticed that different years, and diff models NA/SC have different color coded paint markings. Does anyone have a guide to what the color codes mean that are painted on the springs? I know what they all came out of, as I have them labeled by year & type of engine they came out of, with hours used of course But was curious if anyone had a reference/guide/key as to what the various colors tell you. Does it correspond to model year? Type of motor (NA or SC), year revision (02-05,06+,08+) or what? The manual specifies to install them paint marking up, so maybe it's just used for this, and the color doesn't tell you anything? Any info anyone has on this is appreciated! Thanks in advance!


  2. #2
    GOT BOOST? Dockside's Avatar
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    i have a 06 215 head, yellow marking's

  3. #3
    Richieb's Avatar
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    Oct 2008
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    04 Has green. 215

    07 has Yellow. 215

    These are the 2 heads I have open here atm.

    So, the motor 07 is the same as 06 y the sound of it, and 04 ->

  4. #4
    Waking up this old thread a little

    I'm rebuilding a head from a 03 GTX SC and are changing the valves.
    When removing valves I noticed that the springs have diffrent color codes. And it's not that there are one color for exhaust valves and another for intake, it i mixed among all valves.

    All inner springs are yellow.
    7 of the the outer springs are Green / Purple (mixed exhaust/intake)
    The 5 remaining springs are Yellow.

    Is this normal? Is it supposed to be different springs on exhaust / intake valves?
    What does the color code indicate?

    Thanks
    /Peter

  5. #5
    Quote Originally Posted by umh View Post
    Waking up this old thread a little

    I'm rebuilding a head from a 03 GTX SC and are changing the valves.
    When removing valves I noticed that the springs have diffrent color codes. And it's not that there are one color for exhaust valves and another for intake, it i mixed among all valves.

    All inner springs are yellow.
    7 of the the outer springs are Green / Purple (mixed exhaust/intake)
    The 5 remaining springs are Yellow.

    Is this normal? Is it supposed to be different springs on exhaust / intake valves?
    What does the color code indicate?

    Thanks
    /Peter
    No thats not normal, the yellow ones are newer springs from a 06 and up motor.

  6. #6
    Ok thanks for reply.
    Wonder if it can cause problem to use springs with mixed color codes?

  7. #7
    Quote Originally Posted by umh View Post
    Ok thanks for reply.
    Wonder if it can cause problem to use springs with mixed color codes?
    Not with a stock edu .

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