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Thread: horsepower question
          
   
   

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  1. #1
    GMC400's Avatar
    GMC400 is offline CHR Member Visit my Photo Gallery
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    Apr 2004
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    Car Year, Make, Model: 78 GMC pickup
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    horsepower question

     



    I have a 400sb out of a '71 2 door caprice. It's a 4 bolt main with a K@N filter (free) and dual 2" straight pipe. I know it's not much to go by but what would an estimate on horsepower be?

  2. #2
    TyphoonZR's Avatar
    TyphoonZR is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: 86 S-15 Jimmy sb 400
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    Probably 225-250 hp and close to 300 ft lbs of torque, just a guess.
    Objects in my rear view mirror are a good thing unless,.... they have red and blue lights flashing.

  3. #3
    GMC400's Avatar
    GMC400 is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: 78 GMC pickup
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    thanks

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