fx4wannabe said:
Ok I did see that article but the title threw me off. Would it be possible just to put in a ball valve that you can just turn on and off? It would stay off most of the year down here.
That would sort of work.
There are two schools of thought here. One is that coolant NEEDS to flow out of the head through the heater hose at all times, regardless of whether it goes into the heater core or gets redirected back to the water pump. If you subscribe to that belief, you would need to install two ball valves and two T-fittings to connect the two lines to each other.
The other is that that coolant doesn't need to flow. If you subscribe to that, a single ball valve would do it.
I honestly don't know which is right and which isn't, but I figured I would play it safe and make sure that coolant could flow from the head to the water pump even without going through the core. And, that Ford valve IS cheap (about $20, plus $3 or $4 for the vacuum stuff and four hose clamps). So, just for convenience's sake, I'd go with the Ford valve. But, one or the other ball valve setups would work as well, so it's your call.
Hope this helps...good luck