R4 to Sanden whith stock ac lines(for serpantine)

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

fannin

Junior Member
Joined
Oct 7, 2019
Posts
5
Reaction score
1
Location
Coltons Point MD
First Name
Kyle
Truck Year
1991
Truck Model
R1500
Engine Size
5.7
This is most up to date drawing I have for the brackets. The middle hole can be not drilled until test fitted to allow for small variations.

Is this the factory bracket, or another bracket that has to be fabricated?
 

fannin

Junior Member
Joined
Oct 7, 2019
Posts
5
Reaction score
1
Location
Coltons Point MD
First Name
Kyle
Truck Year
1991
Truck Model
R1500
Engine Size
5.7
Installed the Sanden on my 91 Suburban today. Used the parts referenced in this thread. Ordered r4 to sanden mounting kit from http://www.dirtydingo.com. Had to bend the hardline a little to clear the valve cover. Hooked up the vacuum pump and pulled a vacuum, and it held for over an hour so I think I’m good to charge it now.
You must be registered for see images attach



Sent from my iPhone using Tapatalk
 

yevgenievich

Full Access Member
Joined
Mar 1, 2014
Posts
4,819
Reaction score
3,400
Location
Place
First Name
Name
Truck Year
Year
Truck Model
Model
Engine Size
Size
Installed the Sanden on my 91 Suburban today. Used the parts referenced in this thread. Ordered r4 to sanden mounting kit from http://www.dirtydingo.com. Had to bend the hardline a little to clear the valve cover. Hooked up the vacuum pump and pulled a vacuum, and it held for over an hour so I think I’m good to charge it now.
You must be registered for see images attach



Sent from my iPhone using Tapatalk
Have not had to touch my set up after doing the change. Been working great. Of course I picked up a 6.0 now that thinking of installing, but they make brackets that puts compressor in the same spot as I currently have it
 

fannin

Junior Member
Joined
Oct 7, 2019
Posts
5
Reaction score
1
Location
Coltons Point MD
First Name
Kyle
Truck Year
1991
Truck Model
R1500
Engine Size
5.7
Have not had to touch my set up after doing the change. Been working great. Of course I picked up a 6.0 now that thinking of installing, but they make brackets that puts compressor in the same spot as I currently have it


A LS swap is in my future too. I assume the compressor came with oil in it, correct? So all I will need to do is add the freon?
 

yevgenievich

Full Access Member
Joined
Mar 1, 2014
Posts
4,819
Reaction score
3,400
Location
Place
First Name
Name
Truck Year
Year
Truck Model
Model
Engine Size
Size
A LS swap is in my future too. I assume the compressor came with oil in it, correct? So all I will need to do is add the freon?
I believe I had to add oil because of the larger dual ac system. The spec sheet for sanden installation had good guide lines for oil capacity. I had a thread posted with it in this section
 

RoryH19

Full Access Member
Joined
Aug 21, 2015
Posts
1,668
Reaction score
1,082
Location
Texas
First Name
Rory
Truck Year
1987
Truck Model
R10 Silverado SWB
Engine Size
350 TBI
A LS swap is in my future too. I assume the compressor came with oil in it, correct? So all I will need to do is add the freon?
Yes, they make sanden brackets for the LS swaps. I have a 6.0 in my k5 and in the process of buying both.
Just have to get the one that is for your particular compressor.

Which compressor did you go with? I'm trying to decide.
 

JimmyJay

Junior Member
Joined
Apr 3, 2023
Posts
5
Reaction score
2
Location
Georgia
First Name
Jason
Truck Year
1985
Truck Model
Jimmy
Engine Size
305
I know I’m resurrecting an old thread, but I’m swapping my 85 GMC to a sanden and wanted to see if anyone knows of bracket options for doing this swap on engines that have the compressor on the driver side?

It’s going to be quite a bit of fab work if there’s not something available and I’d rather not engineer something if I don’t have to and if someone smarter than me has already done it.
 

yevgenievich

Full Access Member
Joined
Mar 1, 2014
Posts
4,819
Reaction score
3,400
Location
Place
First Name
Name
Truck Year
Year
Truck Model
Model
Engine Size
Size
Does it have r4 or a6? Either r4 or a6 swap brackets work. Ict billet or vintage air bracket
 
Last edited:

Backfoot100

Full Access Member
Joined
Aug 18, 2017
Posts
374
Reaction score
648
Location
Florida
First Name
Eddie
Truck Year
1986
Truck Model
C1500 Suburban
Engine Size
Carbed 350
I know I’m resurrecting an old thread, but I’m swapping my 85 GMC to a sanden and wanted to see if anyone knows of bracket options for doing this swap on engines that have the compressor on the driver side?

It’s going to be quite a bit of fab work if there’s not something available and I’d rather not engineer something if I don’t have to and if someone smarter than me has already done it.
Check out Vintage Air. They make Sanden mounts for either side, low or high, short or long water pumps, with and without headers. These are excellent heavy duty mounts and they come in raw metal so you gotta paint them. Be prepared to get out your check book though. They aren't cheap but it'll save you days of fabricating work and they fit perfectly. At least mine did.
 

yevgenievich

Full Access Member
Joined
Mar 1, 2014
Posts
4,819
Reaction score
3,400
Location
Place
First Name
Name
Truck Year
Year
Truck Model
Model
Engine Size
Size
Did your R4 have a rear support bracket - and if so, were you able to totally delete it?

THX
At some point ran r4 without the rear support bracket, but better with it. It partially I believe also helps with the compressor noise
 

Doppleganger

Full Access Member
Joined
May 24, 2019
Posts
12,657
Reaction score
58,644
Location
OH-MI: Just like it sounds
First Name
Chris
Truck Year
1985
Truck Model
K20
Engine Size
5.7
At some point ran r4 without the rear support bracket, but better with it. It partially I believe also helps with the compressor noise
I'm using a Sanden also but was more worried about any stress on the aluminum bracket (weight/vibration) from the compressor. Using the R4 bracket - was wondering if I needed to use the original exhaust stud to compressor brace with the Sanden.

THX!
 

Latest posts

Forum statistics

Threads
44,075
Posts
948,848
Members
36,144
Latest member
wolfdog63
Top