6.4 Coolant Flow Direction to Heater Core

[Chuckbizkits]

Does anyone know which line (passenger or driver side)feeds the heater core on a 6.4. Running an after market A/C Heater unit that uses a bypass valve.

 

[brian6pac]

Does it matter ?

 

[RealWing]

This is a link to the mods to my 6.1 heater tubes (last post on this page) I assume the 6.4 is the same.
Jim
SRT8CUDA Build

 

[Chuckbizkits]

Does it matter ?

With factory HVAC, no. Since I’m running a valve it does.

 

[ace26]

With factory HVAC, no. Since I’m running a valve it does.

pass. side out from engine, driver side goes back into engine.

 

[Chuckbizkits]

This is a link to the mods to my 6.1 heater tubes (last post on this page) I assume the 6.4 is the same.
Jim
SRT8CUDA Build

Awesome car! So the passenger side goes to the valve?

pass. side out from engine, driver side goes back into engine.

Excellent! Thank you.

 

[Peter Bates]

It matters. Yes. The flow to the core is on the passenger side. I have the mopar manual for the install of you need it.