ID of water outlets on pre-49 heads

[tubman]

Like the title says, I would like to get some input as to the inside diameter of the water outlets on pre 1949 Ford V8 heads. I would like the measurements for as many varieties of heads as possible; stock, aftermarket, cast iron and aluminum.

I need the information for a project I am contemplating. So if you have a head handy, could you throw a tape or caliper on it and let me know what it measures? Thanks.