Confused on Heater Control Valve for 1975 Duster 360

myduster360 said

When I got it, my 1974 Duster 360 was 99% original. It came with a valve that bolted to the fender.

It Looked like this. (The pic comes up when your part number 3503487) is searched.)
View attachment 1715616235
When it stopped working in the 2000s, I replaced it with the Amazon version you show. seen here hanging from a hose.

Both valves you show will work and be 100% functional.

Click to expand...

(cool serpentine setup you've got there :thumbsup: )
then that has me back to being confused about the heater hose routing. On the heater core coming out of the firewall, the pipe is for 1/2" heater cose (driver side) and the one on the passenger side is for 5/8 heater hose. I was going to run the 1/2" to the heater control valve then on to the water pump (closest to the radiator) and the 5/8 hose directly to the intake manifold nipple. am I wrong there?