How many SB A/C bracket styles for 67-72?

[HuggerCST]

Does anyone know how many small block A/C bracket styles there were? I've seen 3 different styles. These pics are of a '69 GMC 350/th-400 with factory A/C. I've got a '70 chevy 350/th350, a '72 chevy 307/th-350, and a '70 GMC 35/th350 all with another style, and I've seen a 3rd style for sale on the parts board. I'll try to find pics of them & post them. Just curious if it was a year model thing, or GMC/Chevy thing.

[HuggerCST]

This is the style on the '70 Chevy, the '70 GMC, and the '72 chevy.

[HuggerCST]

I've seen these here for sale, but I'm not sure what they are from.

[chickenwing]

Sure the bottom 2 pics are factory and not dealer add on?

[HuggerCST]

Anything is possible, but on the trucks that I have, everything appears factory installed. I've seen other trucks with those brackets too, but never seen another setup like the one in the top pics.

[chickenwing]

The one in the top pic looks just like the set-up in the factory service manual.

[chickenwing]

1972

[HuggerCST]

I get a little red x on the pic, but what year service manual do you have? I found a '71 Chevy service manual, and it has a drawing that looks like #3.

[GSFMECH]

Wynne, those first 3 photos look like the 64-66 style to me, I did not know they carried it over to our year trucks. Kevin (65streetcruiser) was looking for that style for his 65 but we wound up using the style that is on my truck. I don't know if you noticed what was on mine but it was stock. I put a couple of photos but they are not that good.
Mike

[HuggerCST]

Mike- You're probably right on the brackets in the first pic, but I do believe that they came from the factory on this truck. I had to edit my posts a little because I had the years of my trucks and brackets mixed up. I also took pics of my '72, and a couple of brackets that I have to show the difference in the intake brackets in styles 2 and 3.

[da-burb]

I have the one's from your first set of pics on a 69 C20 350/th400 Longhorn.

[JQ-72]

The first picture you have is correct for 67-early 69. It is a carry over from 65-66, except 65-66 did not have the extra support brackets coming from the water pump and intake manifold. I have a 69 Custom 10 now that has the exact set-up you are showing in the first picture.

Joshua

[HuggerCST]

Thanks everybody for the pics and information. Does anybody have assembled pics of style #3, or know what year they are from?

[LUV2XCLR8]

Just Curious, Was The A/c On 69-72 Blazers Always On The
Passenger Side, Po Bought A $223 Billet Aluminum Hotrod
Bracket To Put His Alt. On The Drivers Side, Looks Wrong
To Me, That Is Why I Ask, Oh Yea, Not To Hijack, If Anyone
Would Need A Custom Bracket Like Mentioned Above I Will
Trade Even For A Complete Set Of Correct Ones For My 72.

[68CST327]

They do make A/C brackets that clear tall valve covers, don't they? I mean like some reasonably good looking ones, not some gaudy billet pieces that would look out of place on my stock looking engine (no offense to people with tricked out engines).

[GSFMECH]

Wynne, Those (I assume you are talking about the chrome ones #3?) are just like mine except they are missing the top adjuster like your #2 set has. If you look at my engine pics you can see I have the top adjuster too but the front bracket (that bolts onto the water pump) on your #2 looks different than the front bracket in #3 or the one on my truck. You can run them using that front bracket in #3 without the top front belt adjuster as it will adjust off the front bracket too (the bracket that spans between the water pump and compressor. I will post a couple of pics of Kevins engine. It does not have the top front belt adjuster bracket, Sorry it is not too good, but his brackets are also just like that chrome set. On the chrome ones you also have the nifty little bracket that retains the heater hose and bolts on the front of all that mess. I wish I was at home so I could take some better pics.
Mike