72 Blazer AC mounting - 350 small block - The 1947 - Present Chevrolet & GMC Truck Message Board Network

larryd · 01-30-2009, 01:15 AM

Are all ac compressors mounted on the passenger side of the engine?

bouncytruck · 01-30-2009, 01:49 AM

As far as i know, all the 67-72 V8's had them on the passenger side.

RLONG · 01-30-2009, 08:37 AM

All that i have seen have been on pasenger side could be other side if a add on air i guess. As for as chevy, GMC trucks and blazers right side always.

larryd · 01-30-2009, 10:56 AM

Thanks all for your info. I am restoring a Blazer and the ac compressor was in
the back of bed with no brackets. I do not remember when I tore it down what side the alternator was on and cannot find my pics of this. When putting this back together the alternator bracket mounts on the passenger side. This may not have been the original engine. I will need to scrounge up some ac and alt brackets.
Thanks again.

Livrat · 01-30-2009, 11:11 AM

Heres is a couple of pictures to help you out...(One AC bracket is not pictured)
If you have a hard time scrounging up the parts I have all the brackets and pulleys needed...

**jaros44sr** · 01-30-2009, 11:22 AM

Wow, I'm impressed. If that is your work, I applaud you, looks like the showroom example...

One question, how deep did you dent the firewall for the HEI?

Livrat · 01-30-2009, 11:40 AM

Quote:

Originally Posted by jaros44sr

Wow, I'm impressed. If that is your work, I applaud you, looks like the showroom example...

One question, how deep did you dent the firewall for the HEI?

Thanks for the comment!
I am not sure how deep the denting is.. Never did measure it.
Instead of moving the assembly forward the PO did "ball peen hammer" body work on the firewall to use an HEI with the Big block that "was" in the Burb.. he also did a little to the passenger side for valve cover clearance. At first I was going to cut it out and fix it, but decided to just smooth it up a bit and leave it be..

BLUE THUNDER · 01-30-2009, 08:37 PM

here's a pic of mine, hope it helps. Mario

larryd · 01-30-2009, 11:52 PM

Thanks for everyone's help. If these pictures post ok you can see what i am working with. I found some drivers side alternator brackets but will need to locate the passenger side ac brackets.

Livrat · 01-31-2009, 01:13 PM

Larry, If your looking to go back to factory stock, non of what you have pictured will work.. (other than the alternator and fan).
If you have found the drivers side alternator brackets you would still need the two crankshaft pulleys.. a short water pump and matching pulleys, the power steering pump,hoses,brackets and pulley, And all of the AC brackets.

I can help you with everything you need.

larryd · 01-31-2009, 09:06 PM

I just bought the water pump and told the parts store what year etc I had and the new water pump matched the take off one. I think I should keep it stock. I plan on keeping the body/interior as stock as possible. I may need to take you up on the parts.

larryd · 02-15-2009, 12:40 PM

Looks like I will be mounting the ac compressor on the drivers side after all. I never realized that the heads were drilled different with 3 holes for the ac bracket and one one for the alternator bracket. I would have to change the
heads and I think that is not worth the cost or time.

Livrat · 02-15-2009, 12:57 PM

Larry, No need to change heads to go back to the stock parts, The factory passenger side AC brackets do not use any of the holes on the heads for mounting.

larryd · 02-15-2009, 01:26 PM

Thanks, I will proceed as planned. My compressor has the brackets that bolt to each end still on it. I have been gone lately and need to get back to work on this.

01-30-2009, 01:15 AM	#1
larryd Registered User Join Date: Apr 2007 Location: quincy il Posts: 44	72 Blazer AC mounting - 350 small block Are all ac compressors mounted on the passenger side of the engine?

01-30-2009, 01:49 AM	#2
bouncytruck SKINNY TIRES RULE! Join Date: Sep 2001 Location: Bothell, WA Posts: 11,038	Re: 72 Blazer AC mounting - 350 small block As far as i know, all the 67-72 V8's had them on the passenger side. __________________ bouncytruck 1972 K5 The Hauler 1994 K1500 Suburban The Daily2010 Kia Soul Wife's Ride2014 Fiat 500L Last edited by bouncytruck; 01-30-2009 at 01:50 AM.

01-30-2009, 08:37 AM	#3
RLONG Registered User Join Date: Oct 2008 Location: BROOKELAND,TX Posts: 228	Re: 72 Blazer AC mounting - 350 small block All that i have seen have been on pasenger side could be other side if a add on air i guess. As for as chevy, GMC trucks and blazers right side always.

01-30-2009, 10:56 AM	#4
larryd Registered User Join Date: Apr 2007 Location: quincy il Posts: 44	Re: 72 Blazer AC mounting - 350 small block Thanks all for your info. I am restoring a Blazer and the ac compressor was in the back of bed with no brackets. I do not remember when I tore it down what side the alternator was on and cannot find my pics of this. When putting this back together the alternator bracket mounts on the passenger side. This may not have been the original engine. I will need to scrounge up some ac and alt brackets. Thanks again.

01-30-2009, 11:11 AM	#5
Livrat Member #1049 Join Date: Jun 2000 Location: Troy Montana Posts: 3,940	Re: 72 Blazer AC mounting - 350 small block Heres is a couple of pictures to help you out...(One AC bracket is not pictured) If you have a hard time scrounging up the parts I have all the brackets and pulleys needed... Attached Images

01-30-2009, 11:22 AM	#6
jaros44sr Senior Member Join Date: May 2006 Location: Philadelphia, Pa. 19454 Posts: 9,761	Re: 72 Blazer AC mounting - 350 small block Wow, I'm impressed. If that is your work, I applaud you, looks like the showroom example... One question, how deep did you dent the firewall for the HEI? __________________ Semper Fi...Uncle Sam, you da man All parts offered to help are free, unless otherwise noted Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training SAFETY FIRST AS usual, off topic They say your mind goes second, can't remember the first Jim

01-30-2009, 08:37 PM	#8
BLUE THUNDER Registered User Join Date: May 2007 Location: San Antonio Posts: 993	Re: 72 Blazer AC mounting - 350 small block here's a pic of mine, hope it helps. Mario Attached Images

01-30-2009, 11:52 PM	#9
larryd Registered User Join Date: Apr 2007 Location: quincy il Posts: 44	Re: 72 Blazer AC mounting - 350 small block Thanks for everyone's help. If these pictures post ok you can see what i am working with. I found some drivers side alternator brackets but will need to locate the passenger side ac brackets. Attached Images

01-31-2009, 01:13 PM	#10
Livrat Member #1049 Join Date: Jun 2000 Location: Troy Montana Posts: 3,940	Re: 72 Blazer AC mounting - 350 small block Larry, If your looking to go back to factory stock, non of what you have pictured will work.. (other than the alternator and fan). If you have found the drivers side alternator brackets you would still need the two crankshaft pulleys.. a short water pump and matching pulleys, the power steering pump,hoses,brackets and pulley, And all of the AC brackets. I can help you with everything you need.

01-31-2009, 09:06 PM	#11
larryd Registered User Join Date: Apr 2007 Location: quincy il Posts: 44	Re: 72 Blazer AC mounting - 350 small block I just bought the water pump and told the parts store what year etc I had and the new water pump matched the take off one. I think I should keep it stock. I plan on keeping the body/interior as stock as possible. I may need to take you up on the parts.

02-15-2009, 12:40 PM	#12
larryd Registered User Join Date: Apr 2007 Location: quincy il Posts: 44	Re: 72 Blazer AC mounting - 350 small block Looks like I will be mounting the ac compressor on the drivers side after all. I never realized that the heads were drilled different with 3 holes for the ac bracket and one one for the alternator bracket. I would have to change the heads and I think that is not worth the cost or time.

02-15-2009, 12:57 PM	#13
Livrat Member #1049 Join Date: Jun 2000 Location: Troy Montana Posts: 3,940	Re: 72 Blazer AC mounting - 350 small block Larry, No need to change heads to go back to the stock parts, The factory passenger side AC brackets do not use any of the holes on the heads for mounting.

02-15-2009, 01:26 PM	#14
larryd Registered User Join Date: Apr 2007 Location: quincy il Posts: 44	Re: 72 Blazer AC mounting - 350 small block Thanks, I will proceed as planned. My compressor has the brackets that bolt to each end still on it. I have been gone lately and need to get back to work on this.



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