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lost1er 04-04-2009 04:48 PM

71 and 73 nova ac
Hi guys i got a 71 nova i'm workin on and now i also have a 73 with ac i am wondering if all the ac stuff will work on my 71 ? looks like it but i know looks don't always work out! and are replacements parts hard to find?

DanTwoLakes 04-04-2009 06:31 PM

Let's move this thread to General Rodding Tech.


fast68 04-04-2009 09:44 PM

hi there

well it depends

dealer installed a/c?

factory a/c?

what engine?

dealer and factory installed a/c will be totally different from each other

dealer installed will have aftermarket a/c duct vents in the dash and the compressor wont be a harrison black colored one that is so common on GM vehicles

if one car has dealer and the other has factory then they wont interchange

also the dealer a/c wont have an a/c heater box assembly like harrison factory installed ones are

will be the smaller a/c delete heater box, and the a/c lines will run through the firewall, and not through the heater box.

ebay, chevy nova forums sites, and are ways to find parts you may need, i should have also if it is the old long style harrison compressor, and sbc engine.

good luck

lost1er 04-04-2009 10:20 PM

Wo ok i knew it wouldnt be simple i will get more info but i think it is factory on the 73 my 71 never had ac at all.

1ownerT 04-05-2009 09:21 AM

You could probably make it work, but it won't be easy. To use the factory system on the 71 (that didn't have air when new) would require all of the under dash heater/ AC ducts, dash pad for a AC car, heater core, hole cut into fire wall, different heater/AC controls, control cables plus all of the AC parts under the hood. I think you would need to at least remove the right front fender and inner fender, and hood. It would be a chore.

lost1er 04-05-2009 09:40 AM

Wow ok well hood and fenders are already off and i have the dash pad that fits from the 73 and cables and controls lol i think all the parts under the hood are there

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