R4 to Sanden whith stock ac lines(for serpantine)

I've been researching various threads on here and digesting this one in particular as I'm debating replacing my original Harrison, but leaking (out the back, not front shaft strangely), R4 compressor with a new AC Delco R4...OR biting the bullet and converting to the Sanden unit mentioned at the beginning of the thread. I'm almost convinced on the Sanden route but having a little bit of trouble finding the brackets mentioned earlier. Is there a link or part number that can be referenced for this? I want to make sure I use the correct bracket that doesn't need to modified to make it work with the Sanden compressor Viktor used.

Edit: I should clarify that I'm looking for the correct bracket for a Sanden conversion that has the compressor on the passenger side/serpentine belt.

creich68 said:

I've been researching various threads on here and digesting this one in particular as I'm debating replacing my original Harrison, but leaking (out the back, not front shaft strangely), R4 compressor with a new AC Delco R4...OR biting the bullet and converting to the Sanden unit mentioned at the beginning of the thread. I'm almost convinced on the Sanden route but having a little bit of trouble finding the brackets mentioned earlier. Is there a link or part number that can be referenced for this? I want to make sure I use the correct bracket that doesn't need to modified to make it work with the Sanden compressor Viktor used.

Edit: I should clarify that I'm looking for the correct bracket for a Sanden conversion that has the compressor on the passenger side/serpentine belt.

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I used this one. https://www.dirtydingo.com/shop/mobile_product_info.php?products_id=1622

The one from dirty Dingo looks like the one I made. My dimensions for the brackets are on post 5

Thank you both. That's much more inexpensive than some of the Vintage Air mounts I was combing through (although those were more geared towards a LS crate engine). I wish I had a way to cut/fabricate the mounts with the drawings, but unfortunately don't have the tools to do so.

One follow up question - I noticed the compressor you used Vitkor was a Sanden 4864 with the rear ports. The Dirty Dingo brackets reference a Sanden 4711 compressor. I'm assuming they have the same bolt flange for mounting, but the difference is where the ports are located (i.e. rear vs. top)? I'd like the reuse the factory hose assembly since it was just replaced, which makes the 4864 the appealing choice.

Both part numbers are SD7 and mount same. The rear head is the main difference. Two links for reference below.

yevgenievich said:

Both part numbers are SD7 and mount same. The rear head is the main difference. Two links for reference below.

Sanden USA

Sanden, Sanden USA

www.sanden.com

Sanden USA

Sanden, Sanden USA

www.sanden.com

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Thank you!

The 91 Burb I have was bought new in 91 by my parents, but over the last 1.5 years I've been trying to preserve it as much as I can. However, the NC summers have pushed me to consider deviating from original when it comes to AC. The Sanden route is very appealing for creature comforts

Here is my R4 to Sanden 4864 conversion.

You will notice my burb has been LS swapped. I had the ICT billet R4 bracket. Instead of buying a brand new bracket for the Sanden unit, I elected to buy the Dirty Dingo conversion kit. Of course I had to tweak some of the spacers for the rear mounts, but no biggie. I used the spacers from the ICT kit. According to Dirty Dingo, It should ride in the middle of the 8 grove pulley. They also said i will need a 1" OD larger belt (on order). I know the high line looks tight. I plan on adjusting the metal portions to give it a little more relief. I still need to wire in the connector, charge the system, get my vacuum lines sorted out and I should have A/C!! I will update when complete.

I have to give a shout-out to this forum and yevgenievich for all the information he listed in this post!! Links for the parts I use are listed below;

Sanden 4864 - https://www.autoaironline.com/ac-parts/sanden-4864-compressor-1940

#8 High side discharge port - https://coldhose.com/products/8-high-side-inline-discharge-port-r-134a-16mm?variant=35531745427616

Dirty Dingo R4 to Sanden kit - https://www.dirtydingo.com/shop/product_info.php?products_id=1622

yevgenievich said:

Went ahead with a sanden change out on my suburban. Kept original lines by picking up a sanden unit with rear line mount and adding inline #8 discharge adapter. I will get part numbers and drawing for adapter plates posted on monday. The pulley on the compressor has extra ribs, but it does not make much difderence. Needs a longer belt, you can see in the picture I have the idler bypassed at the moment.

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I just want to say thanks to yevgenievich and everyone in this post.

I followed his write up on a the r4 to sanden swap and now my 90 burb has ice cold front and rear ac.

dd1990 said:

I just want to say thanks to yevgenievich and everyone in this post.

I followed his write up on a the r4 to sanden swap and now my 90 burb has ice cold front and rear ac.

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I think my 1989 Suburban is going to need this upgrade as well - will the listed part numbers work with the 454 or are they different between SBC and BBC engines?

YakkoWarner said:

I think my 1989 Suburban is going to need this upgrade as well - will the listed part numbers work with the 454 or are they different between SBC and BBC engines?

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Not sure, I have a sbc, I would think the only problem may be the lines to the compressor may need to be extended.

On a big block if compressor on passenger side likely to work. But have to verify hose lengths

yevgenievich said:

On a big block if compressor on passenger side likely to work. But have to verify hose lengths

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Compressor is on the passenger side for sure - hose lengths will need to be measured.