71 C10 AC Evaporator core?

[myyamr7]

Hi, I've been searching for a new replacement AC evap-core, mine was slowly leaking oil out the bottom of the AC box.
I see classic truck parts has one for $199, just concerned of the quality? Any suggestions as to where I could get one, and get a quality part? I want a new one, not a used one.

Thanks in advance

[Andy4639]

This is who I used.

http://www.classicautoair.com/GM_OEM_Parts.html

[myyamr7]

I ended up with the classic parts evap core, seems like a quality part, but haven't installed it yet.
I have another question, where do I find that black putty type stuff that goes on the upper line and holds the expansion valve wire to the main line? I can get a pic of needed.

Thanks

[mrein3]

Originally Posted by myyamr7

I ended up with the classic parts evap core, seems like a quality part, but haven't installed it yet.
I have another question, where do I find that black putty type stuff that goes on the upper line and holds the expansion valve wire to the main line? I can get a pic of needed.

Thanks

I have been told you want to use "automotive AC cork tape". I googled that and had lots of hits. I used black 3M strip calk when I did mine but this summer I'll probably order a roll of the cork tape.

[72 K20]

I thought I read on this forum somewhere that there was a core from an astro van or some other GM vehicle that would swap with our old trucks ,,,,,, Was I dreaming this or just wishful thinking ? Thank You ! Tom

[Ta12sec]

Does the Astro van core fit?

[71meangreenc10]

Originally Posted by 72 K20

I thought I read on this forum somewhere that there was a core from an astro van or some other GM vehicle that would swap with our old trucks ,,,,,, Was I dreaming this or just wishful thinking ? Thank You ! Tom

The AC guy in NC said he put one in my truck.

Smitty

[RedRoad]

what are the measurements of the stock evap?

a 85 astro is Core Size in millimeters: 222 x 254 x 70

edit: added pic of NOS evap as comparison