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Thread: Supercharged Big Block Chevy Question
          
   
   

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  1. #1
    Blownchevelle68 is offline CHR Member Visit my Photo Gallery
    Join Date
    Oct 2003
    Car Year, Make, Model: 1968 Chevelle
    Posts
    6

    Supercharged Big Block Chevy Question

     



    Im currently planning the buildup of a 468ci Big Block Chevy. I have a set of 1966 396 heads, closed chambers (I believe around 96cc combustion chambers) and was wondering if anyone else has used these on a supercharged engine and if they performed well. I am concerned with the small cc heads, and do not know if they will flow enough without actually causing backpressure on the blower.

    The block is a 2 bolt main block, and current plans are to stud the mains and run a forged crank/rod/piston setup. Any comments or concerns on this (will be running 10psi at 1:1 drive)

    And the last part, does anyone know of a website that is based for building/tuning supercharged engines?

    Thanks for any help with this, Jason

  2. #2
    madgrinder's Avatar
    madgrinder is offline CHR Member Visit my Photo Gallery
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    Sep 2003
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    Nashville, baby!
    Car Year, Make, Model: '64 Galaxie 500XL
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    304

    supercharged goodies

     



    The small-chamber 396 heads are better suited to "natural aspiration". Since you are using "supernatural aspiration", If I were you I would use a set of open-chamber 454 heads.

    The 454 heads will give you more piston options to suit your newfound compression. Truck 454 heads have thicker castings around the valves for better heat dissipation.
    Ensure that the path of least resistance is not you...

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