pulling the A/C core - Forums - Official C3 Vette Registry

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Topic: pulling the A/C core

in Forum: C3 Cooling and Heating Systems

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pulling the A/C core (1/4)
1/29/19 12:39pm

BillHanna
Standard Member
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Cana, VA - USA

Vette(s):
1975 Stingray 71 350 engine Flat top pistons Sniper fuel injection Hyperspark ignition Vintage Air air conditioning Borgeson power steering box

Joined: 7/3/2016
Posts: 371

While the engine is out of my '75 coupe, I thought I'd remove the air conditioner/heater housing from the engine bay side. I have never gotten much heat out of this so I want to see if there is blockage in the core. The A/C was removed before I got the car, but the evaporator core is still in this housing.

My question is: how much trouble will this be? Is there something I need to be aware of before I get into it. I don't want to create more problems if I can avoid it.

This forum has been a fantastic source of information!

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Re: pulling the A/C core (2/4)
1/29/19 10:56pm

73shark
Limited Member
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Overland Park, KS - USA

Vette(s):
1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day. 2023 Accelerate Yellow HTC Stingray

Joined: 7/9/2003
Posts: 914

It shouldn't be any trouble with the engine out. I know because I installed factory A/C with the engine in. So I guess you're missing the compressor, condenser, and hoses.

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1973 L-82 4 spd

Re: pulling the A/C core (3/4)
2/2/19 8:16am

big ed's corvette
Former Member
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Brookville, OH - USA

Vette(s):
1975 Corvette; white with red stripping and accents; "383" stroker with 700R4 transmission.

Joined: 10/21/2010
Posts: 2

Once you get the A/C assembly out of the engine bay, you can cover the hole left in the engine compartment side of the firewall with an A/C delete plate. They are available on the internet (a little pricey--around $160.00), but it makes the right side of the engine compartment look a lot better. I did this on my75 Corvette several years ago.

Re: pulling the A/C core (4/4)
2/3/19 10:50am

danascar
Standard Member
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Germansville, PA - USA

Vette(s):
1974 Coupe 358ci 4 speed Black w/Medium Saddle interior w/79 custom leather seats. . 1999 C5 Convertible, 6 speed, Atomic orange, Oak interior.

Joined: 1/28/2010
Posts: 859

I did this on my 74. Only problem I encountered was having to install heater fan speed coil into the new AC delete box I put on the firewall. there was no hole built into it for it so I had to make hole big enough to install it and the only place I could find for it is on the bottom. Once the delete box is installed on the firewall it makes this job tough, so make sure you figure out where you need to install it before you mount on firewall and drill hole prior to doing so.

P.S. You will have to remove the coil from the stock AC heater box before removing it.

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DanT

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