Inner Diameter of water pump hose to head /6

Hello

What is the inner diameter of the little 2-3'' hose going from the water pump to the head on a 225 slant six? Mine ballooned out and is leaking everywhere. Since I can't work on my car at my apartment and I have only one vehicle, it would be helpful to know the size without having to remove it from the car first. I tried looking all over the forum and service manual but I couldn't find the size.

Thanks