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Tell me about truck lowers

Discussion in 'Turbo Tech Questions' started by ocshaman, May 9, 2003.

  1. ocshaman

    Joined:
    Feb 1, 2003
    I keep reading about box uppers and gt40 or turck lowers. Are they special trucks, or does the 85 f-150 with 302 that my dad just wrecked have a "truck lower"
     
    ocshaman, May 9, 2003
    #1

  2. Outlaw5.0

    Joined:
    Feb 9, 2003
    The Holley/Saleen/Vortech are are based off the 302 truck lower with a few changes.
     
    Outlaw5.0, May 9, 2003
    #2

  3. ocshaman

    Joined:
    Feb 1, 2003
    What trucks can i fid the venerable "truck lower" on
     
    ocshaman, May 9, 2003
    #3

  4. boostedfoxbody

    Joined:
    Jan 30, 2003
    boostedfoxbody, May 9, 2003
    #4

  5. ocshaman

    Joined:
    Feb 1, 2003
    Not interested in purchasing one, just interested in whether they are off of just certain vehicles, or any truck that came with a 302 or 351
     
    ocshaman, May 9, 2003
    #5

  6. coupe8850

    Joined:
    Feb 7, 2003
    my 87 5.0 bronco had one and my dads 89 f250 5.8 has it to. why dont you just look under your dad's hood:stickpk:
     
    coupe8850, May 9, 2003
    #6

  7. Speedtospare

    Joined:
    Feb 22, 2003
    Kinda like my intake?? Theres allot of porting. To straighten the runners we had to add material (you can see the weld marks)

    :tu:



    Think mine was out of a 1989 F-150

    I have one for sale if anyone is interested. Its a custom upper on a welded and ported GT-40 lower

     
    Speedtospare, May 9, 2003
    #7

  8. RPM inc.

    Joined:
    Feb 7, 2003
    I had a truck lower once. This was 10 years ago. A truck lower can flow some good numbers with porting and epoxying, and or welding the runners. The new stuff is better and cheaper!
     
    RPM inc., May 9, 2003
    #8

  9. ocshaman

    Joined:
    Feb 1, 2003
    The truck is gone, and i don't know where to.
     
    ocshaman, May 10, 2003
    #9

  10. niceguynick50

    Joined:
    Apr 13, 2003
    I have one I'd like to get out of my dad's storage. I can't stand hearing him bitch at me anymore and I don't think I'll ever end up using it. All I want is $25 plus ACTUAL shipping. E-mail if interested
    This content is protected
     
    niceguynick50, May 11, 2003
    #10

  11. Speedtospare

    Joined:
    Feb 22, 2003
    I highly doubt its cheaper, and I guarantee I can outflow any intake on the market with exception of the spyder intake's for what I spent. This is assuming you can do your own work. The intake in the top pic went 9.23@151 with a 306 and a vortech J trim 5-6 years ago.

     
    Speedtospare, May 11, 2003
    #11

  12. Speedtospare

    Joined:
    Feb 22, 2003
    pictures of intake for anyone interested













     
    Speedtospare, May 15, 2003
    #12

  13. RPM inc.

    Joined:
    Feb 7, 2003
    Very impressive and enough said!:) But to get a truck lower to flow like that will take some money unless you can do it yourself, and that was my point. ;)
     
    RPM inc., May 15, 2003
    #13

  14. turbojunkie

    Joined:
    Apr 25, 2003
    Yeah the truck lower work great but as said they need a "little" massaging to really work good. Actually they need to be fully hogged out. I had a vortech intake on my 93 s-trim car and i loved it but the bigger difference came when i pulled it off and ported the shit out of it. Oh yeah any 302 based truck with efi will work.
     
    turbojunkie, May 15, 2003
    #14

  15. Speedtospare

    Joined:
    Feb 22, 2003
    yeah I have a ton of hours in to porting. It was difficult to get the runners stright. You will notice the walls a pretty thin now also.
     
    Speedtospare, May 15, 2003
    #15

  16. boostedfoxbody

    Joined:
    Jan 30, 2003
    Was your truck lower ported to a 1250, or 1262 intake gasket?
     
    boostedfoxbody, May 16, 2003
    #16
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