Converting a Non AC car to Factory AC

I had typed this out in a reply I just saw pop up and wanted to save the writeup for future reference. I know my descrption needs some refinement but will serve as a start:

Going from a non A/C setup to an original A/C setup (63 or 64) is a large undertaking requiring many components. I've had one customer that I know did a complete conversion and ended up renting a room a few miles from me and going through everything.  There are some alterations that need to be made (e.g. firewall) and some large pieces that need to be replaced (e.g. core metal dash) and things that need to be switched out to accomodate AC parts (e.g. cylinder head cross over pipe/water intake).  With the 64 system you will have some different components and additional components but going to an original 63 or 64 will require a laundry list of parts and some physical modifications or changing around your dash and firewall.

I'm guessing there are easily 30+ parts total but some of the main things to consider for either 63 or 64 system:

Engine Compartment: Compressor and compressor coolant lines and mounts, compressor belt, Cylinder head outlet pipe (water intake) with extended arm to support compressor, 5 bladed clutch fan (or later model 7 bladed fan) and radiator shroud, condensor and mounting supports, condensor to evaporator line, dehydrator/dryer and brackets, evaporator with Suction throttle valve, You will need a hole cut in the firewall on right side for evaporator, 3 groove crank and water pump pulleys, idle speedup control wiith bracket for carb, heater blower box assembly with recirculation diaphragm.

Inside car: The physical dash needs holes to accomodate the AC Vents on sides and center. It is easier to just pick up a new core dash (which I have), Other items include  Left, right, center AC chrome dash outlets, and ducts and clamps, AC-Heater switch control panel, additional vacuum lines and wiring harness for AC/Heat setup, underdash heater box and core and cross over duct, inner heater/ac box to Evaporator duct and clamps, kick panels to replace your vented heat-only panels.

For the 64 Comfort control you will also need a few other items including powerservo and transducer, 3 sensors in cluding the dash sensor, mode door diaphragm ambient air switch time delay Or replacement Master Vacuum Switch,  heater water control valve, with thermal vacuum valve.

I am probably missing a few items but believe I got most of them.

A general pricing for all parts in VG condition is $1250 + s/h for the 1963 setup or $2000 for the 1964 Comfort Control Setup. What I don't have I can out you on the Wait List or some of our other parts suppliers may have them.

With the many parts and size and weight of some, I would suggest coming down for a day going through the parts and saving a ton on shipping.  That 40 lb compressor alone can really set you back depending on your location if all of the items are shipped.  If interested email me at 

Views: 642


You need to be a member of 63/64 Cadillac Website to add comments!

Join 63/64 Cadillac Website


  • Add Photos
  • View All


63 jetaway transmission

Started by Scott L Foltz in Restoration Discussion 15 seconds ago. 0 Replies

Hello and thank you for letting me join this group. While I was driving my 63 model 62 my trans cooler line blew off and needless to say I ran out of fluid. The next day I replaced the rubber hose…Continue

Tags: Transmission

1964 limo driveshaft

Started by Jim Staruk in General Discussion. Last reply by Jim Staruk 1 hour ago. 2 Replies

Hi, Can someone please tell me if the 1965 (1964) Series seventy-five limousine has a single or two-piece drive shaft?  Thank you.  JimContinue

Current 1963/64 Cadillac Listings on eBay

Started by Jason Edge in For Sale. Last reply by Jason Edge 2 hours ago. 0 Replies

To see all 1963/64 Cadillacs Listed on eBay in the USA…Continue

Tags: ebay

429 Engine timing chain cover

Started by Alex in Wanted to Buy. Last reply by Russ Austin 4 hours ago. 1 Reply

Hi, anybody knows where to find a timing chain cover in good condition for a 64 Deville?ThanksAlexContinue

Blog Posts

Cadillac Returns to its Roots Under New Leadership

Posted by Jeff Kinzler on May 1, 2019 at 12:30am 3 Comments

Cadillac’s new boss says they should stop trying to build BMWs and go back to building Cadillacs again.

What do you think?

Radiator And Shrouds

Posted by Dominic Salemi on April 24, 2019 at 3:36pm 1 Comment


Anyone have a decent radiator and shrouds and hardware for a 1964 Cadillac deville. I have an alum. radiator and I'm deciding on to fix it or back to the original one. If I fix it I won't need parts.


64 Recirc/Fresh Air Door Actuator replaced; FROM THE INSIDE.

Posted by Norman Silverman on February 4, 2019 at 11:21pm 8 Comments

I am happy to report that I have successfully replaced the Fresh Air/Recirc door actuator that is located on the blower box-and have done so without having to remove the blower box. I did it by taking out the glove box and attacking it from the back.  It took several days, LOTS of patience and some band-aids, but it is done. THE most difficult part -BY FAR- is to remove and then replace the screw that sits on the actuator arm, connecting it to the fresh…




  • Add Videos
  • View All

© 2019   Created by Jason Edge.   Powered by

Badges  |  Report an Issue  |  Terms of Service