big block compressor brackets

[74propu]

I need a set of r-4 a/c compressor brackets for the driver side of a big block with a long water pump . or if there is someone that knows of a bracket that will work let me know . I just don't want to change everything up and have a 508 compressor and lines on it I am trying to keep it all GM under the hood. thanks in advance if you have a set or can help me out in any way

 

[Mr Clean]

Do you have any pics? I have BB A/C brackets, but they are for the big compressor.

 

[74propu]

ok i will try this pic it is short and big around

 

[Mr Clean]

Sorry dude that's not what I have brackets for.....

 

[smoothandlow84]

I have a ac bracket off of a 350...its the upper bracket (curved slightly) that attaches to the block on the drivers side. Its for the ac compressor that you have a pic of. The bracket has a curved notch in it that the compressor rotates/slides in for tension adjustment. It should be the same used on a big block. There is also a bracket (that I had a tough time sourcing ) that bolts directly to the compressor. I unfortunately dont have any of these.

In the pics, its the larger bracket on left side of compressor.

 

[74propu]

thank you smooth but the small block brackets are not the same as the big block how and where they bolt to the head is not the same . I have found out that these brackets were only made for 2 years . in 84 they used the a6 compressor then 85-86 the r4 v-belt compressor in 87 went to r4 serpentine belt and brackets . sooooo they will be as hard to find as a honest politician

 

[smoothandlow84]

Sounds like you have quite the challenge. Sorry that I couldnt help.

 

[chengny]

It appears that the bracketing you are looking for - to mount an R4 compressor on a big block - was only used in 1989-1991 and only on 1/2 & 3/4 ton 06's (Suburban & Blazer/Jimmy):

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Looks like this bracketing will be available only in junkyards.