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400 TBI cam

Discussion in 'The Garage' started by fatbob, Sep 17, 2005.

  1. fatbob

    fatbob 1/2 ton status

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    The 350TBI motor in my towrig died, so I'm gonna replace it with a 400.
    I have a 400 with TBI heads, RV cam, and a Qjet that makes plently of power for what I need. But to updata this motor I'm gonna want a different cam that is more TBI friendly and will work with reg hyd-lifters. I believe the TBI motors had roller rockers, so anyone have any cam recomendations that will satisfy these requirements? :ears:
     
  2. sweetk30

    sweetk30 professional hooker Premium Member

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    stock tbi motors in trucks were non roller lifters / rockers.
     
  3. southernspeed

    southernspeed 1/2 ton status GMOTM Winner

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    True. And the cams are pretty mild. You'll need a cam kinda close to TBI specs and/or be prepared to do some chip burning.
    If you're running a 'normal' compression ratio and a cam with a similar lift, duration and seperation to that of a 'hot' TBI cam you may well get away with a stock chip.
    Good luck.
     

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