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Re: 69 B body. Factory AC vs Aftermarket.
[Re: Dabee]
#963486
04/01/11 02:33 PM
04/01/11 02:33 PM
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Joined: Jan 2003
Posts: 1,374 Houston,Tx.
Lee446
pro stock
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pro stock
Joined: Jan 2003
Posts: 1,374
Houston,Tx.
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Using the factory stuff inside is fine, like said previously all o rings need replacing. When I did this swap, you have to have the hoses custom made, so be sure to run them on the upper fenderwell instead of over the valve covers like factory and some aftermarket does. I have done a couple of r-134 conversions on Mopars and will say this, 134 does not get as cold as R-12, modern cars compensate by having bigger blowers and larger vents to move large volumes of"cooler" air. Our Mopars had pretty small vents and even on Hi, all my blower motors are anemic compared to modern ones. My wifes Cuda still has working factory A/C in it and that extra 6-8* temp drop with R-12 really makes a difference in getting a hot car cooled quickly! R-12 is still available and is expensive, but if you do the job right, it should pretty much be a one time expense. When I change her car over to a big block, I will go with a Sanden compressor but maintain the R-12. Just something to consider.
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