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My LS1 Air conditioning retrofit

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Old 04-25-2010, 05:57 PM
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Default My LS1 Air conditioning retrofit

I picked up one of the F-body motorsports brackets designed for the LS1 engine so you can use a standard round AC compressor used on GM cars and trucks thorughout the 80’s and early 90’s.

http://www.youngsfbody.com/inc/sdetail/12165

This kit was basically an option for 3rd generation camaro owners wanting to keep their factory AC compressor.
The price on their website is $299 + shipping and there is no way I would have payed that much for this kit. I ended up getting it from a member on another forum for $150 shipped still in the box. It didn’t bother me paying this much because it came with all this stuff.
Here’s what you get:
1. Rear Bracket (1)
2. Front Bracket (1)
3. 1” deep spacer for 10 x 1.5 bolts (3)
4. 3” deep spacer for 10 x 1.5mm bolts(2)
5. 10 x 1.5 x 50mm bolt (2)
6. 10 x 1.5 x 100mm bolt (3)
7. 10 x 1.5 x 130mm bolt (2)
8. 10x 1.5 lock nuts (3)
9. Idler pully spacer (1) – this was a custom machined part
10. 3/8” washer for idler pulley (1)
11. Belt – Kelly springfield brand part # 6K922 (1)
12. Idler Pulley – Dayco brand part # 89007 (2)





First thing I did was swap out the stock pulley on the tensioner for the dayco #89007 supplied in the kit. I had to remove it while I was installing the brackets






Last edited by 1976CamaroGuy; 04-25-2010 at 09:08 PM.
Old 04-25-2010, 05:58 PM
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I then position the brackets using the 1” and 3” spacers , two 10 x 1.5 x 130mm bolts, and one of the 10 x 1.5 x 50mm bolts as shown in the picture below.





Here is a pic of the ac compressor installed, I actually had to drill a hole for the stationary tensioner. The hole was missing, but was there in the instructions?? I mounted the tensioner with the last 10 x 1.5 x 50mm bolt, lock nut, washer and machine spacer.





I Use the 10 x 1.5 x 100mm bolts and last three locknuts to secure the compressor…one bolt required me removing the passengers valve cover to get it in.






Finished product..looks pretty good..I’m not sure if I got that belt on right, it wasn’t shown in the instructions…but it “looks” right.


Old 04-26-2010, 07:07 PM
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very nice, can anybody get it for $150 or is it $299?
Old 04-26-2010, 07:20 PM
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Originally Posted by ep142
very nice, can anybody get it for $150 or is it $299?
Its $299...I gave $150 NIB from a member on another forum who initially paid $299 for it. I got lucky...
Old 04-26-2010, 08:32 PM
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Looks good! I've been wanting to see a thread using that bracket!
Old 04-26-2010, 08:36 PM
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Nice install. Which engine swap mounts are you using?
Old 04-27-2010, 01:29 AM
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Stupid question, doesn't the tensioner attached to the top pully normally pull the belt up?
Old 12-24-2010, 10:00 AM
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Originally Posted by garys 68
Stupid question, doesn't the tensioner attached to the top pully normally pull the belt up?
not sure, in this install it pulls the belt down if memory serves me correctly.
Old 12-24-2010, 10:00 AM
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Originally Posted by randy129
Nice install. Which engine swap mounts are you using?
ebay no-name special
Old 12-24-2010, 10:03 AM
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.....

Last edited by 1976CamaroGuy; 12-24-2010 at 10:09 AM.
Old 12-24-2010, 01:49 PM
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Since alot of people are weight concerned. How much more or less dos a gm compressor weight compared to a sanden? Nice mounting of it and in the same location as the other guys.
Old 12-24-2010, 02:01 PM
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not sure, I didn't compare the weight of both compressors, I would assume that this compressor adds a "little" weight versus the oem but not a whole lot.

Either way its a small price to pay if your going to be driving the car a lot in July/August and want some comfort.

But the 5.3 engine (with aluminumheads and plastic intake) is going to be a little lighter than a standard 100% iron block that came in this car originally so it may balance out. Plus I'm going to gain around a 100 horses or so more with the swap than the engine that came in the car so I'm not going to push the weight issue much anyways.
Old 12-24-2010, 08:27 PM
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Default Alternator question

Hi, Do you have the drop Pittman arm on your camaro? Or is it a straight one? How is the clearance on your Camaro. Thanks.
Old 12-24-2010, 08:35 PM
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Originally Posted by npersha
Hi, Do you have the drop Pittman arm on your camaro? Or is it a straight one? How is the clearance on your Camaro. Thanks.
I've got the straight pitman arm, it's close but clears fine. There is about 1/4" clearance when it swings under the alternator.

Last edited by 1976CamaroGuy; 12-24-2010 at 08:43 PM.
Old 12-24-2010, 09:24 PM
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I purchased that same kit a few years ago when they were called f-body motorsports. Your brackets look to be a lot better quality than what I received. When I put my kit together the pulleys didn't line up perfectly and thus the belt always made a lot of noise. I'm glad to see that the quality improved with the new owners.
Old 12-25-2010, 06:55 AM
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Not a bad kit, but those radial (R4) compressors were notorious. They had a pretty high failure rate. They were not nearly as reliable as the Sanden 508 style compressors.
Old 12-25-2010, 09:16 AM
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Originally Posted by speedtigger
Not a bad kit, but those radial (R4) compressors were notorious. They had a pretty high failure rate. They were not nearly as reliable as the Sanden 508 style compressors.
True, but my thinking is that this car isn't a daily driver and will only see very few miles mostly driven in the spring / summer/ fall months on weekends or one or twice a week to work.

Plus these compressors were used on TONS of gm vehicles throughout the 80's...I only gave $40 shipped for this one...if it fails I'll snag another one at the boneyard. A lot better than shelling out a few hundred for a sanden.
Old 12-26-2010, 06:16 PM
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So please let me understand this correctly,
I have a 1987 Cadillac Brougham into which I am swapping a 5.3l engine.
If I use this kit I can use the compressor that came originally with the Caddy and I would only have to swap the pulley on the compressor?
Old 12-26-2010, 06:41 PM
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Since that bracket is set up for the LS1, the compressor brackets would have to be spaced out a little to match the truck accessories. The truck accessories all stick out a little further than the LS1 accessories. All you would need is a few washers or another way to space them out, and possibly longer bolts to bolt on the brackets.



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