1964 300K w/AC heater core replacement

[NitrousTuner1]

Well unfortunately I've figured out that the seeping coolant is coming out of the A/C box...
My question is HOW Do you swap out the heater core? Do I need to remove dash pieces or all from the engine side.
Car has 413 w/long rams

 

[413]

It’s right there. Take off the front box core is the only thing inside. Don’t take off the entire box, that has the evaporator.

 

[NitrousTuner1]

Gotcha.... That's what I thought BUT wasn't sure it would come out of that hole.
Thanks

 

[NitrousTuner1]

NOW the issue seems to be The Only core available is for Non A/C car's

 

[LeBaron1973]

Have you tried Ohio vendor Murray B Park www.cbodies.com.

Murray has lots of Mopars and may have what you need, otherwise can yours be repaired? Seem to recall reading that someone (maybe not a mopar vehicle) did theirs but it was fiddly. If not too bad radiator shops have been known to do repairs.