Replacing 67 Camaro Heater Core

[Zedder]

I want to replace my leaking 67 Camaro heater core and there appears to be two ways to do this...remove the fender and access from the engine bay, or remove the glove box and drop the heater box into the interior and access the core from inside the car. Since I have nice paint, I'd prefer accessing the core from inside the car. Anyone ever do it this way? Any tips or pointers that you can provide? Thanks!

[ELEFUNTMAN]

Can all be done from the inside. Just take your time, remove the glove box, as I recall one of the nuts in the engine compartment is a little difficult to get to however doable. Be careful going back in, small block cores have the "bends" and have to play with it carefully to get through the firewall.

[ELEFUNTMAN]

Can all be done from the inside. Just take your time, remove the glove box, as I recall one of the nuts in the engine compartment is a little difficult to get to however doable. Be careful going back in, small block cores have the bends at the ends and have to play with it carefully to get through the firewall.

[Jonesy]

I did both my 69's non A/C from the inside. I didnt even disconnect any cables. Yes, you have to take the glove box out.
There are 6-7 nuts I believe, the hardest nut to get at is at the lower left of the cover. I could get it off but it was really hard to get it back on. Its just in a tight spot.
I had both my heater cores rebuilt locally so I knew they would be good and that they would fit.
After doing 1, I knew what to expect and the tricks of doing the second. It was easier than I thought.

[Too Many Projects]

Yep, the guys are right, from the inside. Put a small amount of tape on a couple insides of the socket for the outer nut that is difficult to reach. Press the socket on the speed nut and it won't fall when it's off the stud. I took mine completely out, as it needed a "little" cleaning too.

[Zedder]

Thanks guys! I think I’ll give it a shot!

How does all that crap get in there?

[Lynn]

There is no filter on the intake. Air is drawn in through the cowl panel vents. Anything that can fit through the vents can end up in the heater core.

[Zedder]

Got it…thanks Lynn!

[Too Many Projects]

Cowl vent. The fan pulls air from in the cowl and leaves can slide thru the vent and get washed down in with water/rain. Pull your kick panel and vent sometime, you'll be amazed how much "stuff" is in there. My '66 Chevelle had Eucalyptus and Live Oak leaves stacked almost to the top, when it came here from FL.

[Jonesy]

To remove the core itself, there is a clip with 2 hex head screws that are behind the foam seal piece. Slide the foam seal off the two tubes and you will see them. There is also a push on retainer that holds the other side. You may need to pry that off with a screwdriver.
Then the core will come right out of the heater box.