5.3 LS A/C compressor mount in 72 chassis - The 1947 - Present Chevrolet & GMC Truck Message Board Network

hotrodwest · 03-01-2012, 02:24 PM

I'm putting an 04 5.3 LS engine out of a Avalanche into a 72 Chassis. I reading the various build threads I know I need to clearance the frame for the compressor lines. The problem I have is the engine mounts interfere with the compressor mount. I have the flat plate mount adaptor that mounts the LS engine in the old chassis but it puts the engine mount too far farward on the engine for the compressor to mount. Any suggestions? Thanks

Z1971 · 03-02-2012, 03:08 PM

Alan Grove makes some brackets for the LS. They list the dimensions. Hope it helps, the are about as cheap as you can find. http://www.alangrovecomponents.com/LS.htm

**Clyde65** · 03-02-2012, 07:11 PM

Kwik Performance make a high mount (pass side) AC bracket also

HavinSomeFun · 03-02-2012, 10:51 PM

I had to trim off part of the AC bracket to make it fit. No issues after that...

usmcchevy · 03-02-2012, 11:55 PM

Check the LSx swap FAQ linked in my signature.

Motor mounts
http://67-72chevytrucks.com/vboard/s...d.php?t=413855

mcbassin · 03-03-2012, 12:03 AM

What he said ^^^

I used the stock compressor on mine. I also used the 73 up style motor stands and mounts. I did have to modify my adapter plate as Glock recommended in the link above. I also made a brace to carry my pass. side engine stand. Pictures HERE

hotrodwest · 03-03-2012, 12:09 AM

thanks for all the responses. I will ck them out and let you know how it turns out.

03-01-2012, 02:24 PM	#1
hotrodwest Registered User Join Date: Jan 2012 Location: Boerne TX Posts: 13	5.3 LS A/C compressor mount in 72 chassis I'm putting an 04 5.3 LS engine out of a Avalanche into a 72 Chassis. I reading the various build threads I know I need to clearance the frame for the compressor lines. The problem I have is the engine mounts interfere with the compressor mount. I have the flat plate mount adaptor that mounts the LS engine in the old chassis but it puts the engine mount too far farward on the engine for the compressor to mount. Any suggestions? Thanks

03-02-2012, 03:08 PM	#2
Z1971 Registered User Join Date: Sep 2011 Location: Overland Park, KS Posts: 65	Re: 5.3 LS A/C compressor mount in 72 chassis Alan Grove makes some brackets for the LS. They list the dimensions. Hope it helps, the are about as cheap as you can find. http://www.alangrovecomponents.com/LS.htm __________________ Z 1971 LWB Ochre

03-02-2012, 07:11 PM	#3
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,546	Re: 5.3 LS A/C compressor mount in 72 chassis Kwik Performance make a high mount (pass side) AC bracket also __________________ Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 *support our troops!*

03-02-2012, 10:51 PM	#4
HavinSomeFun Still Just Havin Some Fun! Join Date: Jun 2007 Location: Piedmont, Oklahoma Posts: 1,145	Re: 5.3 LS A/C compressor mount in 72 chassis I had to trim off part of the AC bracket to make it fit. No issues after that... __________________ a green one with some stuff done to it....

03-02-2012, 11:55 PM	#5
usmcchevy Has more rust than truck... Join Date: Apr 2005 Location: Ivanhoe, MN Posts: 2,421	Re: 5.3 LS A/C compressor mount in 72 chassis Check the LSx swap FAQ linked in my signature. Motor mounts http://67-72chevytrucks.com/vboard/s...d.php?t=413855 __________________ 1972 Custom/10 SWB, 4.8/4l80e Build thread LSx Swap FAQ index

03-03-2012, 12:03 AM	#6
mcbassin Still Learning Join Date: Jul 2009 Location: Central Oklahoma Posts: 10,108	Re: 5.3 LS A/C compressor mount in 72 chassis What he said ^^^ I used the stock compressor on mine. I also used the 73 up style motor stands and mounts. I did have to modify my adapter plate as Glock recommended in the link above. I also made a brace to carry my pass. side engine stand. Pictures HERE __________________ Mike "69 Short Wide" My Project 86 Silverado Landen's Project Instagram: @mcbassin My Website C/10 Club Oklahoma Facebook Group

03-03-2012, 12:09 AM	#7
hotrodwest Registered User Join Date: Jan 2012 Location: Boerne TX Posts: 13	Re: 5.3 LS A/C compressor mount in 72 chassis thanks for all the responses. I will ck them out and let you know how it turns out.



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