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Thread: AMG/GEP 506 Navistar Longblock ID

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  1. #1
    Join Date
    Apr 2001
    Location
    Newberg Oregon
    Posts
    12,308

    Default

    P400 was the model designation for the AMG 6.5 that had been refitted with the complete lower cast iron girdle assembly.

    Take a couple pix of the engine and post here.

    Get a good side shot showing the pan rail area, as this is where the difference is.

    Robyn
    (1) 1995 Suburban 2500 4x4
    (1) 1997 Astro
    (1) 2005 Suburban (Papa Smurf)
    THIS IS BOW TIE COUNTRY

  2. #2
    Join Date
    Feb 2000
    Location
    Montana
    Posts
    11,413

    Arrow

    Quote Originally Posted by Robyn View Post
    P400 was the model designation for the AMG 6.5 that had been refitted with the complete lower cast iron girdle assembly.

    Take a couple pix of the engine and post here.

    Get a good side shot showing the pan rail area, as this is where the difference is.

    Robyn
    If it doesn't have the cast-iron girdle, it's NOT a P400.

  3. #3
    Join Date
    Apr 2010
    Location
    Western Australia
    Posts
    13

    Default Confused

    Quote Originally Posted by More Power View Post
    If it doesn't have the cast-iron girdle, it's NOT a P400.
    A pic of the valley with 506
    Attached Images Attached Images

  4. #4
    Join Date
    Feb 2000
    Location
    Montana
    Posts
    11,413

    Default

    That does look like a P400... likely a drop-in for a HMMWV.

    The heads may have the vertical mounting flanges for the HMMWV intake manifold, which won't work for a pickup truck/Suburban intake. If you can use the rear mounted turbo, you're golden.

    Thanks for posting the pic.

    Jim

  5. #5
    Join Date
    Apr 2010
    Location
    Western Australia
    Posts
    13

    Default Confused

    Quote Originally Posted by Robyn View Post
    P400 was the model designation for the AMG 6.5 that had been refitted with the complete lower cast iron girdle assembly.

    Take a couple pix of the engine and post here.

    Get a good side shot showing the pan rail area, as this is where the difference is.

    Robyn
    Thanks heaps for your reply hope I get this right first time here's the pics
    Attached Images Attached Images

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