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  1. #1
    Sr. Apprentice socal77k5's Avatar
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    Mar 2010
    Orange County

    Default 77 chevy 400 small block vaccuum diagram?

    hey yall i have a 77 chevy k5. with a 400 SBC with a 4 bbl rochester quadrajet. I have the timing set but it still runs a bit off. i know its the vaccuums. does anyone out there know where i can find a diagram for this years 400 motor?
    1987 Chevy Suburban 4x4 - Lifes a garden, dig it, gotta keep on keepin on!

  2. #2


    I too had a rebuilt of my 400 sbc lately however ran out of cash in the middle of up gradations and had to do with lower horsepower. should be aiming for a bit higher power later this year.

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