*LS/GenIII swappers* A/C part numbers inside - The 1947 - Present Chevrolet & GMC Truck Message Board Network

glock35ipsc · 04-21-2010, 03:38 PM

I put together a list of parts needed if you are swapping to a GenIII/LS style engine and wish to retain the LS's A/C compressor in it's original location without notching the frame. I also threw in some part numbers of other things like the condenser, accumulator, etc in case you either need to or want to replace those.

I got the system charged today and it works awesome, so if this is the way you are planning/wanting to go, it works great!

Keep in mind - the misc part numbers for things like the condenser, accumulator, and so forth are specific to my 85; however, they will most likely be the same for 81-87. 73-80 will almost definitely have different part numbers. If you are doing this on a 73-80, confirm the fitting sizes on the receiver dryer/accumulator, evaporator and the condenser before ordering your fittings.

k10shortbox · 04-21-2010, 04:20 PM

so you used the factory bracket and condenser? This will save a ton of money, thanks!

glock35ipsc · 04-21-2010, 04:32 PM

Everything was original to the truck (albeit new replacement parts) except the compressor (came with the 5.3) and the hoses (I made those). The compressor mounts to the 5.3L just as it did in the donor vehicle.

Note in the pic the trans cooler lines are running out underneath the A/C idler pulley. Those have been rerouted inside the frame rail using SS braided hose. The steel lines were getting pinched right there.

SBTork · 04-21-2010, 08:25 PM

Great work again Bob. Maybe this should be a sticky, just a thought.

SatisTraction · 04-21-2010, 11:11 PM

thanks for the list, it will come in very handy!!

Cherub · 04-22-2010, 07:22 AM

Yea i think there should be an lsx swap sticky. So we can condense all the information in all these build threads.

glock35ipsc · 04-22-2010, 09:26 AM

Thealien has done a LOT of work in a thread he started, compiling tons of links and other info on the swaps. If it isn't already in the FAQ section, it should be. I'll see about putting this list in that thread too, and check on the FAQ part of it too.

gchemist · 04-22-2010, 06:37 PM

Why in the @#$#@ would engineers move the compressor down by the frame?

Pyrotechnic · 04-22-2010, 06:48 PM

I imagine it was to keep the lines down low and out of the way, and most likely so they could run the A/C on it's own belt off the crank pulley. That way if the compressor locks up, it's not going to shred the serpentine belt and leave you stranded.

STOCKISH · 04-22-2010, 08:51 PM

Bobs the man.

rare86 · 04-22-2010, 09:06 PM

thanks for the list

04-21-2010, 04:20 PM	#2
k10shortbox Registered User Join Date: Mar 2009 Location: Sioux Falls, SD Posts: 44	*Re: LS/GenIII swappers* A/C part numbers inside** so you used the factory bracket and condenser? This will save a ton of money, thanks!

04-21-2010, 04:32 PM	#3
glock35ipsc Next project: 1970 K10 Join Date: Feb 2004 Location: Fort Collins, Colo 80524 Posts: 6,685	*Re: LS/GenIII swappers* A/C part numbers inside Everything was original to the truck (albeit new replacement parts) except the compressor (came with the 5.3) and the hoses (I made those). The compressor mounts to the 5.3L just as it did in the donor vehicle. Note in the pic the trans cooler lines are running out underneath the A/C idler pulley. Those have been rerouted inside the frame rail using SS braided hose. The steel lines were getting pinched right there. __________________ Bob 1970 Chevy K10 LWB "Goldie" 350/TH350 next project!!** 1981 Chevy C10 LWB 355/TH350 - My son's truck LS SWAP FORUM! Tons of LS swap info here! PLEASE CLICK HERE TO SUPPORT THE GREATEST BOARD ON THE NET! CLICK HERE FOR THE FAQ INDEX by KRUE Last edited by glock35ipsc; 04-21-2010 at 04:37 PM.

04-21-2010, 08:25 PM	#4
SBTork Garage wrench Join Date: Feb 2008 Location: LaCrosse, WI Posts: 1,855	*Re: LS/GenIII swappers* A/C part numbers inside** Great work again Bob. Maybe this should be a sticky, just a thought. __________________ -Adam 90 V1500 GMC Suburban 350/700R4/NP241..... 01 Saturn SL1 stock DD.....

04-21-2010, 11:11 PM	#5
SatisTraction Registered User Join Date: Feb 2010 Location: jackson ms Posts: 133	*Re: LS/GenIII swappers* A/C part numbers inside** thanks for the list, it will come in very handy!! __________________ WTB 73-87 SWB fleetside bed!! 85 C10 6.0 project 69 camaro ls1 / t56 90 mustang lx 75 bronco injected 351w

04-22-2010, 07:22 AM	#6
Cherub Registered User Join Date: Feb 2008 Location: Houston Posts: 970	*Re: LS/GenIII swappers* A/C part numbers inside** Yea i think there should be an lsx swap sticky. So we can condense all the information in all these build threads. __________________ 2014 LTZ Z71 Silverado 82 C15 LQ4/4L80E Conversion 78 Suburban build (SOLD) 83 4x4 Suburban(SOLD) 82 C15 (my first truck)

04-22-2010, 09:26 AM	#7
glock35ipsc Next project: 1970 K10 Join Date: Feb 2004 Location: Fort Collins, Colo 80524 Posts: 6,685	*Re: LS/GenIII swappers* A/C part numbers inside Thealien has done a LOT of work in a thread he started, compiling tons of links and other info on the swaps. If it isn't already in the FAQ section, it should be. I'll see about putting this list in that thread too, and check on the FAQ part of it too. __________________ Bob 1970 Chevy K10 LWB "Goldie" 350/TH350 next project!!** 1981 Chevy C10 LWB 355/TH350 - My son's truck LS SWAP FORUM! Tons of LS swap info here! PLEASE CLICK HERE TO SUPPORT THE GREATEST BOARD ON THE NET! CLICK HERE FOR THE FAQ INDEX by KRUE

04-22-2010, 06:37 PM	#8
gchemist BAD BOW-Silverado XST Join Date: May 2000 Location: Senior Member from Austin, TX Posts: 6,431	*Re: LS/GenIII swappers* A/C part numbers inside** Why in the @#$#@ would engineers move the compressor down by the frame? __________________ Gerardo a.k.a. Mad Chemist Silverado XST videos

04-22-2010, 06:48 PM	#9
Pyrotechnic Registered User Join Date: Feb 2007 Location: Austin, TX Posts: 3,930	*Re: LS/GenIII swappers* A/C part numbers inside I imagine it was to keep the lines down low and out of the way, and most likely so they could run the A/C on it's own belt off the crank pulley. That way if the compressor locks up, it's not going to shred the serpentine belt and leave you stranded. __________________ 1977 GMC Sierra Grande**

04-22-2010, 08:51 PM	#10
STOCKISH Formerly- 1972SuperCheyenne Join Date: Oct 2008 Location: Wake Forest NC Posts: 5,782	*Re: LS/GenIII swappers* A/C part numbers inside** Bobs the man. __________________ --Josh My Build Thread:http://67-72chevytrucks.com/vboard/s...d.php?t=799218 A good crossthread is better than Loctite any day. Life is not about what you have, but who you have to share it with.

04-22-2010, 09:06 PM	#11
rare86 Extended cab fanatic Join Date: Oct 2009 Location: Gardendale, Tx Posts: 314	*Re: LS/GenIII swappers* A/C part numbers inside** thanks for the list __________________ If it has a motor, it has my attention.



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