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Sep 6, 2014 | 04:43 PM

Vette-kid

Thread Starter

Melting Slicks

Joined: Oct 2006

Posts: 2,193

Likes: 156

From: Navarre FL

Pic request

Im having a hard time getting my AC brackets to line up. Car is a 78 L48. Can anyone get me good pics of the mounting brackets with the compressor installed (R4)? Im having a hard time seeing what I need on the AM. Brackets look right, but the compressor is about an inch away from the adjuster bracket.

Alternative, does anyone know of a good aftermarket bracket for R4 compressors?

Sep 6, 2014 | 07:07 PM

7t9l82

Le Mans Master

Joined: Oct 2010

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From: melbourne florida

2023 C3 of the Year Finalist - Modified

do you have aftermarket heads?

Sep 6, 2014 | 08:11 PM

KapsSA

Safety Car

Joined: Jun 2004

Posts: 4,354

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From: Beecher Illinois

Don't know if this will help, compressor's not in place.....
https://www.corvetteforum.com/forums...-mounting.html

Sep 6, 2014 | 09:59 PM

Vette-kid

Thread Starter

Melting Slicks

Joined: Oct 2006

Posts: 2,193

Likes: 156

From: Navarre FL

Quote:

Originally Posted by 7t9l82

do you have aftermarket heads?

Yes, but the holes should be the same right? The bolts line up fine on the lower part of the bracket (water pump bolt and the shared bolt on the head). Its a complete after market motor, nothing original about it.

Sep 6, 2014 | 10:02 PM

7t9l82

Le Mans Master

Joined: Oct 2010

Posts: 6,900

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From: melbourne florida

2023 C3 of the Year Finalist - Modified

I've seen some heads that the holes are in the right place just they don't come as far out as factory you may have to make spacers. without seeing it kinda hard to say.

Sep 7, 2014 | 05:53 PM

Vette-kid

Thread Starter

Melting Slicks

Joined: Oct 2006

Posts: 2,193

Likes: 156

From: Navarre FL

Quote:

Originally Posted by KapsSA

Don't know if this will help, compressor's not in place.....
https://www.corvetteforum.com/forums...-mounting.html

Sorta...I had the lower brace upside down, blocking the water hose. That shoulda been self explanatory

Id like to see the orientation of the compressor itself and how it looks installed. Front front and back if anyone has it.

Sep 7, 2014 | 05:57 PM

Vette-kid

Thread Starter

Melting Slicks

Joined: Oct 2006

Posts: 2,193

Likes: 156

From: Navarre FL

Quote:

Originally Posted by 7t9l82

I've seen some heads that the holes are in the right place just they don't come as far out as factory you may have to make spacers. without seeing it kinda hard to say.

Yeah, I think that may be the case. I found a spacer that's about 3/4" and that seems to work ok. Im not sure I have the compressor in the right orientation though. In order to get everything to line up I started with the front bolts and worked my way up and back. Now the hole that goes into the exhaust bolt isn't lining up. I may have to attack a few of the holes in the bracket with a dremel to give me some room.

I wouldn't mind an aftermarket bracket, but I cant seem to find one for an R4 compressor. Its pretty annoying actually...plenty of R4 brackets for LS engines though

Sep 7, 2014 | 05:58 PM

hugie82

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Joined: Mar 2007

Posts: 3,652

Likes: 49

From: Bridgewater nj

If you still have the AC lines in place, hold them up to the compressor. They usually stay in the same shape over years of being in place. That will give you the original clocking of the compressor. The clutch plug is always on top or clocked toward the passenger side fender.