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My son has a 74. It originally had a/c in it. When he replaced the engine the a/c unit was removed. He is looking into a unit from Vintage Air. The guy who put the engine in told him not to replace the ac unit telling him that it could damage the engine.
I don't see how replacing the AC compressor would damage the engine, I run a non-factory compressor on my 377. Lots of people run the vintage air unit, I hear good things.
Last edited by Bowerss2; May 12, 2016 at 09:12 AM.
If I remember correctly... They changed radiators to a smaller one since the new engine is bigger and they were afraid of heat and other issues.
I still wouldn't worry about it, If the car still has a mechanical fan, you can add a small electric fan over the AC condenser to help it out (if you are stuck in traffic the AC might stop working as well).
Or do what I did and spring for a Dewitts fan, and call it a day
Why would you put a smaller radiator in with a bigger engine??? What kind of logic is that?
My son corrected me. It's the same. The reason the mechanic said it is because it's the "racing engine".....
IMHO he just wanted to be done with the car.
My son has a 74. It originally had a/c in it. When he replaced the engine the a/c unit was removed. He is looking into a unit from Vintage Air. The guy who put the engine in told him not to replace the ac unit telling him that it could damage the engine.
The engine is a jegs 355cid.
Any thoughts?
my 1974 with vintage system on a GM ZZ5. with a Dewitts radiator/dual electric fans with a Trinary switch to activate the fans on when high pressure is reached. like for example in traffic.
The only possible reason I can see for worrying about an AC system with a hi po engine, is the belts. Hi revving engines tend to throw belts, especially on an AC compressor, since compressors don't come with deep groove pulleys.
You're only going to throw a belt at high RPM, and if you do start throwing belts, you can always convert to a serpentine belt.