Heater core fittings, size ?

[War Eagle]

Hi Kevin
I have an automotive type flow valve mounted on the engine side of the firewall with a cable/ push pull knob on the panel. This allows you to adjust the water flow and control the heat much better than a ground adjustable valve. I am not being a smart ass here but maybe in Sask you just open it up in October and shut off next May!!!(sorry).
Cheers
Don

I also installed an automotive valve and used a push/pull cable to operate it from the panel. It has been working well for me.

The operating knob is shown as the round one to the right of the throttle. This picture is before the labels were put on.