fire wall enclosure of the heater core
03-22-2011, 03:04 PM
#1
Melting Slicks
Thread Starter
fire wall enclosure of the heater core
Guys ,is it possible to take off the enclosure that covers up the ac and heater core on the engine side?can it be taken off from the engine side?I want to make the engine bay cleaner and less cluttered.Bill
03-22-2011, 04:14 PM
#3
Melting Slicks
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03-22-2011, 04:25 PM
#4
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Sure. It's mounted with studs, bolts, and sealant. Some bolts inside, some under the hood. AIM will show it.
Take your time and you can probably sell all that stuff.
Take your time and you can probably sell all that stuff.
03-22-2011, 04:30 PM
#5
Melting Slicks
Thread Starter
Thank you Mike,so i cant get it unbolted just from engine side,i will have to go under dash to unbolt it too?
03-22-2011, 06:03 PM
#7
Ahh hah! 
As I recall there were just a handful of screws that are accessed from the passenger footwell area under the dash. (helps if you're skinny and flexible) I didn't find it very difficult to get the cover loose from the firewall, but I simply could not get it far enough off the cores to angle it out of the engine bay with the engine still installed.
As I recall there were just a handful of screws that are accessed from the passenger footwell area under the dash. (helps if you're skinny and flexible) I didn't find it very difficult to get the cover loose from the firewall, but I simply could not get it far enough off the cores to angle it out of the engine bay with the engine still installed.
03-22-2011, 08:03 PM
#8
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I was able to get mine out with the engine in place. You will have to go under the passenger side dash to access a couple of screws to get it out.
This will also remove the inside duct box in the process. Take it slow and pay attention to how it all comes out.
I am in the process of putting in a new heater core, so if you plan on keeping the heat this is a good time to do it as well. I also had to partially disassemble the box in the engine bay and then had to do some calculus based trigonometry
to get it out.
Good Luck
This will also remove the inside duct box in the process. Take it slow and pay attention to how it all comes out.
I am in the process of putting in a new heater core, so if you plan on keeping the heat this is a good time to do it as well. I also had to partially disassemble the box in the engine bay and then had to do some calculus based trigonometry
to get it out.Good Luck
03-22-2011, 08:54 PM
#10
Melting Slicks
Thread Starter
Ok guys heres a little harder question,i want to convert to non ac and put in non ac heater core and change the (engine compartment side) enclosure that covers the heater core.i have the different heater core and the non ac cover that goes over the heater core.Can i still use the under dash heater core compartment with the other non ac parts i have? will it all bolt up and fit together?
03-22-2011, 10:14 PM
#11
You guys that did it with the engine in, did you have AC or just heat? Mine was free from the firewall, but there was simply no way I could pull it far enough away from w/e is under it to wiggle it out of the bay. 
03-22-2011, 10:26 PM
#12
Race Director
Coolant recovery tank must be removed and usually to do that the a/c compressor moved.
Remove the blower motor and all the bolts from the outside and inside.
then the a/c case splits in two with a few screws and slides out.
03-23-2011, 11:44 AM
#13
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Stock system will then bolt in.
03-23-2011, 03:11 PM
#14
Melting Slicks
Thread Starter
Purchase the assembly instruction manual (AIM). The AIM will show where the heater core opening in the cowl was cut larger for the AC core. If you want to go from AC to non-AC, you will have a little fiberglass lay up to do and some bolt holes to fill in the firewall.
Stock system will then bolt in.
Stock system will then bolt in.
03-23-2011, 03:41 PM
#15
Melting Slicks
When I removed mine from my 71 (with A/C) I removed the exhaust header and managed to work it up and out that way. Reinstalling it I did not want to scratch it up as I had reconditioned it. So I disassembled the fan casing from the evaporator casing and reassembled once in the engine bay .
10-31-2021, 11:37 PM
#16
Keep the matching numbers block. You or the future owner will regret it if you waste it on a core.
Also, consider just rebuilding it. I had an 85 S10 blow once.....took the engine to Autozone, we sent it out to a large rebuild company and I got the same block back all freshly rebuilt. It took a little longer, because of the added ship to time. Never regretted that. Figured the larger company had the better machines and would do a better job than a local small shop with ancient equipment.
Also, consider just rebuilding it. I had an 85 S10 blow once.....took the engine to Autozone, we sent it out to a large rebuild company and I got the same block back all freshly rebuilt. It took a little longer, because of the added ship to time. Never regretted that. Figured the larger company had the better machines and would do a better job than a local small shop with ancient equipment.
11-01-2021, 08:40 AM
#17
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hopefully they've already decided.... 
M
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M
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Thread closed.
