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  1. #11
    SBC's Avatar
    SBC
    SBC is offline CHR Member Visit my Photo Gallery
    Join Date
    Nov 2004
    Location
    Magnolia
    Car Year, Make, Model: 69 Chevy Nova 283 4-spd
    Posts
    443

    I plan to rebuild a 283 down the line also.
    Its a WA suffix which I think is a 1965 model.

    But I'm trying to get the theoretical physics clear in my head first.

    Torque - so the longer rod (with a standard 283 crank?) raises
    the compression ratio increasing torque? Seems like 'dwelling
    longer at TDC' would be a function of RPM.

    Or does say a 327 crank in a 283 increase torque due to the extra leverage a the crankshaft?

    Also - I've read that a 283 moves less than, or right at 500 CFM.
    Does a cam allow it to handle 600+ CFM. Probably needs larger valves too?

    Any decent reference sites/books on basic gas motor physics?

    Thanks - Bert
    Last edited by SBC; 05-16-2005 at 09:51 AM.

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