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1977 Ford F100 AC upgrade / update

Motocentro on Tue June 25, 2013 9:53 PM User is offline

Year: 1977
Make: Ford
Model: F100
Engine Size: 302
Refrigerant Type: 134
Country of Origin: United States

Hello, All.

I have recently begun an engine swap in my 1977 F100. I am installing an EFI 5.0 (hotrodded 302). I am retaining the modern serpentine system and want to utilize a modern AC compressor and several components. I have built the rest of the engine and its components to 87-93 mustang specifications.

My current thinking is to utilize the stock (to the truck) controls, evaporator and condenser and source new the drier, hoses, expansion valve etc. (if I missed anything). After I have it installed and assembled a friend who has access to a certified shop (dealer mechanic) will charge it, check for leaks, etc.

Is this going to be possible? Does anyone know what challenges I will face?

Note: This is my first AC unit but nowhere near my "first rodeo." I am attempting to keep this post brief and I'm afraid that I'll sound like an idiot here

Thanks for the time and any advice you might have for me!


fonebone on Wed June 26, 2013 1:05 AM User is offline

Hi Jim; One of the pros can help on the compressor, but do not use the stock r-12 condenser. Since you are building all new, use an aftermarket r-134 aluminum parallel flow condenser, the largest one you can fit in front, available here on home page. Much more efficient, and will give you colder temps inside.

fireguywtc on Sun June 30, 2013 3:29 PM User is offline

I second using a larger condenser for R134. Did it on my 70 as well. Everything else can be left the same as long as you update all new O-rings and clean the system.

1970 Ford F250 4x4
2007 Ford F350

Motocentro on Mon July 01, 2013 6:15 PM User is offline

This is good news. Since all the parts will be "new" (or reman) I'll be sure that they have the appropriate o-rings and I'll source a new, compatible condenser instead of the old one.

Thanks for the answers, I'll repost/update when I get it all installed and charged.


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