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Thread: 400 small block build for 69 camaro. Anyone with desktop dyno?
          
   
   

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  1. #1
    69elko's Avatar
    69elko is offline CHR Member Visit my Photo Gallery
    Join Date
    Jan 2007
    Location
    San Jose
    Car Year, Make, Model: 1969 El Camino SS396 350HP
    Posts
    227

    400 small block build for 69 camaro. Anyone with desktop dyno?

     



    So here's the 400 I'm building right now. Haven't finished it yet but it's getting close. For the most part a budget build. Should be REAL torquey!!! Here's the specs...


    short block: 400CID
    400 small block chevy 4.125" stock bore
    stock dish pistons with new rings
    stock 5.565" rods
    stock 3.75" stroke crank
    9:1 compression

    Heads:
    Fuelie Corvette heads 461's. 2.02 1.6 valves. Pocket ported. Estimated at 225cfm at .500 lift. Use your best judgment on flow numbers, the heads have not been ported just yet. Estimated 75% Exhaust/Intake flow ratio. 64cc combustion chambers.

    Camshaft: Hydraulic flat tappet
    Lunati Voodoo part#60102
    Advertised dur. 262 intake 268 exhaust
    Duration @ .050 219 IN. 227 EX.
    Lift: .515 Intake, .538 Exhaust (with 1.65 roller rockers)
    LSA is on 112
    I believe this cam timing is taken at .050"...
    Intake opens 1.5 degrees BTDC
    Intake closes 37.5 degrees ABDC
    Exhaust opens 49.5 degrees BBDC
    Exhaust closes -2.5 degrees ATDC

    Weiand Stealth dual plane intake manifold

    Hooker 1 3/4 inch headers

    750cfm Holley vacuum secondary carburator



    Did I forget anything?...Thanks for any replies ahead of time...
    Last edited by 69elko; 07-04-2008 at 03:51 PM.

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