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#1062967 - 07/30/19 01:02 PM a/c compressor decision time.  
Joined: Mar 2006
Posts: 78
MarauderPrime Offline
10+ Year
MarauderPrime  Offline
10+ Year
Member

Joined: Mar 2006
Posts: 78
Central/south florida
Hey Guys, I just discovered that the original (from 1984) R4 compressor on my monte has given up the ghost. I am planning on doing either an LS swap, or moving forward with modernizing the 350 thats in it (Now that we are applying modern tech to the old SBC, it looks like the power difference between them is only like 15% if you do things well on your small block, and the gap closes even more when boost comes into the equation), but either way, I am planning on running an R4 compressor with either setup.

Either path I chose would require me to convert the pulley over to the camaro/b-body style 6 rib, from the V-belt. How hard is that to do? I had been told in the past that its do-able, but that the cost of the new clutch and pulley itself is so close that you might as well just buy a new compressor for that application instead of swapping out the pulley, and I really don't want to buy a compressor twice. So if its not worth it to swap the pulley, I may just garage the car until November, and then do the compressor when I do whatever motor stuff I am going to do.


2011 Shelby GT500, Kona Blue with white stripes, Intake Silencer removed, Factory Paper Filter exchanged with a cotton gauze filter, and a dynotune. 549 RWHP ITS TOO EASY!

Me:"Doug, is it weird that I drive around in a 2011 GT500, and lust after another 85 Monte Carlo SS?"

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#1062970 - 07/30/19 05:35 PM Re: a/c compressor decision time. [Re: MarauderPrime]  
Joined: Dec 1999
Posts: 11,704
86ttop Offline
20+ Year
86ttop  Offline
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Joined: Dec 1999
Posts: 11,704
Brooksville, Fl
If you are going to do the compressor pulley switch, you'll have to change other pulleys as well, you might as well do the complete conversion to a serp setup, but if you are really planning on an LS Swap, that compressor is different. Either way, it won't be cheap to do! On the other hand, there is a better compressor than the R4 to use as a replacement compressor, I do not have the particulars on that compressor, others here may have that info for you. Good luck. As a Florida resident myself, I would not go without A/C in the summer!!


Leo Paugh
It's not an attitude, it's just the way I am.
POW*MIA
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#1062971 - 07/30/19 07:36 PM Re: a/c compressor decision time. [Re: MarauderPrime]  
Joined: Mar 2000
Posts: 5,546
upflying Offline
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upflying  Offline
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Joined: Mar 2000
Posts: 5,546
Reno, NV
Somewhere in my feeble memory I recall reading about a G-body friendly serpentine pulley swap involving the use of '95 and older Chevy truck TBI 350. Parts you need could be a close as your wrecking yard.
I could be wrong so I'm not sure.

Last edited by upflying; 07/30/19 07:41 PM.

86 MCSS Notchback coupe, LS3, 4L65E, QP 9", Eaton Truetrac, 4 wheel disc, column shift, Dakota Digital, silver with maroon bench interior

#1062999 - 08/02/19 02:13 AM Re: a/c compressor decision time. [Re: MarauderPrime]  
Joined: Nov 2008
Posts: 622
jmireles Offline
10+ Year
jmireles  Offline
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Joined: Nov 2008
Posts: 622
El Paso, Tx
I think you can also use the accessory brackets from a late 3rd Gen F-body...they also used the R4 A/C compressor. I think if you did that, you'd be better off getting a Regal condenser, so that the compressor and condenser service ports are both on the passenger side.


-'87 Monte SS LS 2/4L65e Quick Perf. 9" w/disk brakes
-'89 Iroc Z28 Stock 5.7 Edelb. TES headers, Borla Exhaust90K
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in '08. 3K
#1063240 - 08/20/19 10:17 PM Re: a/c compressor decision time. [Re: MarauderPrime]  
Joined: Mar 2013
Posts: 46
Huskerfan Offline
Member
Huskerfan  Offline
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Joined: Mar 2013
Posts: 46
Omaha Ne
Talking about air conditioning does anyone know where to but the lines unfortunately when i bought my car it was already taken off. Also the line that runs across the fan shroud is that part of the air conditioning system? Thanks

#1063242 - 08/21/19 01:30 AM Re: a/c compressor decision time. [Re: MarauderPrime]  
Joined: Dec 1999
Posts: 11,704
86ttop Offline
20+ Year
86ttop  Offline
20+ Year
Member

Joined: Dec 1999
Posts: 11,704
Brooksville, Fl
Jeff, I bought mine at NAPA, didn't need the hard line. If you can't get them at NAPA, try www.mikesmontes.com and good luck!!


Leo Paugh
It's not an attitude, it's just the way I am.
POW*MIA
You are not forgotten
If things improve with age, I must be approaching magnificent. thumbs
#1063283 - 08/23/19 02:45 AM Re: a/c compressor decision time. [Re: 86ttop]  
Joined: Mar 2013
Posts: 46
Huskerfan Offline
Member
Huskerfan  Offline
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Joined: Mar 2013
Posts: 46
Omaha Ne
Thanks Alot I will check into it.


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