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Thread: Mid. tube headers for 4WD

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  1. #1
    Join Date
    Mar 2006
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    Mesquite
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    You look into Thorley's at all?

  2. #2
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    Jun 2005
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    Way up in North Dakota
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    Quote Originally Posted by DamnYankee View Post
    You look into Thorley's at all?
    I will give them a call, they list up to 2001, thanks
    2002 GMC 1/2 ton Sierra,4WD, Xct cab, camed, mid-length headers, Nelson tune, electric rad. fan, trany cooler, Heavy 5750 lbs with topper.

  3. #3
    Join Date
    Jun 2005
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    Way up in North Dakota
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    Ordered Thorley Tri-Y Headers today!!

    Cam stuff to follow.
    2002 GMC 1/2 ton Sierra,4WD, Xct cab, camed, mid-length headers, Nelson tune, electric rad. fan, trany cooler, Heavy 5750 lbs with topper.

  4. #4
    Join Date
    Jun 2005
    Location
    Way up in North Dakota
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    High Jack--What valve spring?

    Looking at a Comp 212/216 .550"L 114 . And hardened push rods.
    What do you good gear heads recommend for valve springs?
    Are Vinci HP -832 dual coil springs like Manley's? VHP are said to be quiet and long lasting.
    Comp. 918 bee hive look good too.
    I know at .550" lift it should not be too hard on springs.

    Some one could talk me into new rockers too.

    PS Surprisingly --We are remodling the bathroom and the wife has been OK with spending $$ on my project because of the $$ put into the bathroom!

    But of course this is to get better gas mileage. Save the planet!!
    Last edited by metalchips; 08-10-2007 at 10:28 PM.
    2002 GMC 1/2 ton Sierra,4WD, Xct cab, camed, mid-length headers, Nelson tune, electric rad. fan, trany cooler, Heavy 5750 lbs with topper.

  5. #5
    Join Date
    Apr 2003
    Location
    Mansfield, Texas, USA
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    2,462

    Thumbs up

    LS6 orange or yellow springs.

    Rockers are spendy and don't add much power, figure 5-7rwhp for $300. Money is better spent on underdrive pulleys.
    The superior man is modest in his speech, but exceeds in his actions. - Confucius

    "He who asks of life nothing but the improvement of his own nature, is less liable than anyone else to miss and waste life."- Henri Frederic Amiel

    '01 Chev Z71 LT - '85 BMW 745i TURBO - '88 BMW 750iL - '88 Ford F150 XLT Lariat - '79 MB 240D - '79 MB 280S Euro
    '80 MB 380SE-5.0 Euro - '85 MB 300SD - '87 MB 300SDL - 1990 MB 300SEL - '91 MB 300SE - '91 MB 560SEL

    Let's face it, the red hair... makes 'em wet.


  6. #6
    Join Date
    Jun 2005
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    Quote Originally Posted by Hit Man X View Post
    LS6 orange or yellow springs.

    Rockers are spendy and don't add much power, figure 5-7rwhp for $300. Money is better spent on underdrive pulleys.
    Thanks---- will do some searching
    2002 GMC 1/2 ton Sierra,4WD, Xct cab, camed, mid-length headers, Nelson tune, electric rad. fan, trany cooler, Heavy 5750 lbs with topper.

  7. #7
    Join Date
    Jun 2005
    Location
    Way up in North Dakota
    Posts
    346

    Tri Y Thorlys

    snapper.jpg
    NO Clearance problems [on the lawn mower--- y needed work]
    fat.jpg
    Lost 21 lbs of ugly fat iron
    jardine.JPG
    Straight through, but quiet with cats
    IMG_0401.JPG
    Hanging pretty
    Last edited by metalchips; 08-24-2009 at 11:08 PM.
    2002 GMC 1/2 ton Sierra,4WD, Xct cab, camed, mid-length headers, Nelson tune, electric rad. fan, trany cooler, Heavy 5750 lbs with topper.

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