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SBC 400 Build Up

Discussion in 'The Garage' started by Shawn, Oct 22, 2005.

  1. Shawn

    Shawn 1/2 ton status Premium Member Author

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    I decided to hold off on the forced induction and build a decent SBC.

    I just scored a 400 SBC for $75 but it needs a rebuild.

    Thinking about slapping on some Vortecs and a good fuel injection system and calling it good.

    What are people's thoughts on this setup they did on CHP?

    http://chevyhiperformance.com/techarticles/148_0306_406/

    Here's the article:
    [​IMG]

    [​IMG]
     
  2. sled_dog

    sled_dog 1 ton status

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    I actually think that setup with the LT4 hot cam would only be better IMO. Little better lobe seperation angle(for EFI concerns), split duration vs a cam with the same pattern on both lobes, and some more lift.
     
  3. Shawn

    Shawn 1/2 ton status Premium Member Author

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    I was thinking the same thing. I didn't care for the LSA on the Lunati and I'd rather have a split pattern.
     
  4. u2slow

    u2slow 1/2 ton status

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    I think they used the flat tappet cam to keep the cost down. AFAIK, retro-roller kits are costly.

    Starting from scratch, I think I'd either stick with a Q-jet, or go propane before trying any kind of EFI setup on a 400.
     
  5. Shawn

    Shawn 1/2 ton status Premium Member Author

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    Yeah, after looking into retrofitting a LT4 cam, its not that easy and a roller cam retro fit from Comp is 600-800. I might just stay with the standard lifters and find something similar to the Hot Cam numbers. I'd rather stay away from the Quad and Propane. I've had problems in the past with steep hills and the Quad and Propane looks like a PITA to install and find places for fuel. I already have a TBI setup going back in my 87 from a 90 so I think it would be worth it to install a larger throttle body and have a chip burned on the dyno. I get free dyno time at a friends shop.
     
  6. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    You do realize that you have to drill steam holes before you do this right?
     
  7. Shawn

    Shawn 1/2 ton status Premium Member Author

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    [​IMG]
    Yes, its in that article too. I'll have my head shop do it.
     
  8. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    :thumb:
     

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