Replacing heater parts - what do I need?

[smh00n 90]

My 70 with factory a/c seems to have destroyed the heater core, so I pulled the hoses off. Now I am in need of a heater soon and want to replace the parts.

I know I need a core but what other hardware on the Engine side do I need? I’m currently on vacation in the USA so don’t have access to my parts books.

[Ridge Runner 1,153]

You will need a complete seal kit for the box 

[aslanefe 346]

Heater hoses go from the heater core to engine. So, on the engine side all you would need are hoses and clamps; if your vacuum activated cut off valve is not working, then a new valve. The hose from heater core to valve is an S shaped hose you have to get from a Mustang parts vendor; other hoses are cut to length hoses you can get from any parts store.

[smh00n 90]

Thanks guys. That’s what I figured I needed. Does the valve brand matter? CJ have a different one to West Coast Cougar (who I think are probs the better source for OEM stuff) but WCC are out of stock of the seal kits. And is it just supported by the hoses and not attached to anything?
The vacuum hoses probably all need replacing as well. Who does them?

[Mach1 Driver 596]

here is a link to the gasket set: https://www.npdlink.com/product/gasket-set-heater-box/103212?backurl=search%2Fproducts%3Fsearch_terms%3Dheater%2Bdoor%2Bfoam%26top_parent%3D200001%26year%3D1969&year=1969

[aslanefe 346]

On 6/4/2024 at 2:47 AM, smh00n said:

Thanks guys. That’s what I figured I needed. Does the valve brand matter? CJ have a different one to West Coast Cougar (who I think are probs the better source for OEM stuff) but WCC are out of stock of the seal kits. And is it just supported by the hoses and not attached to anything?
The vacuum hoses probably all need replacing as well. Who does them?

As far as I know, the valve is supported by the hoses; no hard attachments. Brand shouldn't matter if inlet and outlet diameters match to the hose; all it does is close the hot coolant to heater core when AC is on.