Need some help with setting up A/C system - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Blue85 · 07-31-2004, 03:48 AM

I am trying to gather up the parts i will need to build my truck, just a quick question about the factory A/C. I am going to be using a 350 vortec from a 98 chev truck since i don't have the factory a/c compressor from my 1970 i will use the one from the 98. All of the of the a/c components are still on the 70, what parts will i have to change to use the new style 134 compresser with the old system?

walker · 07-31-2004, 03:01 PM

This might help.http://67-72chevytrucks.com/vboard/s....php3?t=112463

Blue85 · 08-01-2004, 04:42 PM

what about reusiing the stock condensor, evaporater, etc, with 134?

BobbyK · 08-02-2004, 05:58 AM

As long as you flush the system to clean out the old R12 oil you can make it work.
Evpe. core you can definitly use again.
Condensor- I am useing a stock replacement condensor and it cools fine.But I have just converted over and I havn't really seen any truely hot weather here(California coast).I hear a new style "parallel flow" condensor should be used for max. cooling.

*rage'nrat638* · 08-02-2004, 08:58 AM

EVERY THING HERE STOCK EXCEPT FOR A AFTER MARKET SANDEN R134 COMP...
FROSTY BALL'S.....

badpeanut · 08-02-2004, 01:23 PM

rage'nrat638, your setup looks nice. Could we get more details on your AC?

Did you replace hoses? O-rings?

Did you replace the dryer?

Did you just evacuate and recharge with R134a? Or flush?

07-31-2004, 03:48 AM	#1
Blue85 Oilfield Trash Join Date: Sep 2003 Location: Raymore, Sk, Canada, Earth Posts: 3,171	Need some help with setting up A/C system I am trying to gather up the parts i will need to build my truck, just a quick question about the factory A/C. I am going to be using a 350 vortec from a 98 chev truck since i don't have the factory a/c compressor from my 1970 i will use the one from the 98. All of the of the a/c components are still on the 70, what parts will i have to change to use the new style 134 compresser with the old system? __________________ 14 Dodge 3500 Mega Cab 08 Dodge 3500 Mega Cab 87 Chev 3+3 4x4 80 GMC K10 High Sierra bone stock 70 Chevelle 350SS long term project 68 GMC 3ton Grain Truck/Garbage wagon 50 Pontiac 2 Door Coupe Project "I've got a shotgun rifle and a 4 wheel drive and a country boy can survive" Hank Jr.

07-31-2004, 03:01 PM	#2
walker Registered User Join Date: Jul 2003 Location: north of Phx AZ about 30 miles Posts: 698	This might help.http://67-72chevytrucks.com/vboard/s....php3?t=112463 __________________ Andy,Phx AZ '67 C-10 (Ahhh, done at last. Well there is that disk front end I want to put in and...) "23 C-Cab-sold '48 Ford 8N tractor(still working) '67 Scout(Now on the road) '70 MG B.-sold

08-01-2004, 04:42 PM	#3
Blue85 Oilfield Trash Join Date: Sep 2003 Location: Raymore, Sk, Canada, Earth Posts: 3,171	what about reusiing the stock condensor, evaporater, etc, with 134? __________________ 14 Dodge 3500 Mega Cab 08 Dodge 3500 Mega Cab 87 Chev 3+3 4x4 80 GMC K10 High Sierra bone stock 70 Chevelle 350SS long term project 68 GMC 3ton Grain Truck/Garbage wagon 50 Pontiac 2 Door Coupe Project "I've got a shotgun rifle and a 4 wheel drive and a country boy can survive" Hank Jr.

08-02-2004, 05:58 AM	#4
BobbyK Registered User Join Date: May 2000 Location: Petrolia,Ontario,Canada but working in Port Huron,Mi. Posts: 1,771	As long as you flush the system to clean out the old R12 oil you can make it work. Evpe. core you can definitly use again. Condensor- I am useing a stock replacement condensor and it cools fine.But I have just converted over and I havn't really seen any truely hot weather here(California coast).I hear a new style "parallel flow" condensor should be used for max. cooling. __________________ 71 blazer,350SBC,approx.375HP,700R4,factory GM TPI.Dual electric fans,33x12.5x15 ATR on stock suspension. Petrolia,Ontario,Canada but working in Port Huron,MI. See ALL my Blazer pic's HERE

08-02-2004, 08:58 AM	#5
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	EVERY THING HERE STOCK EXCEPT FOR A AFTER MARKET SANDEN R134 COMP... FROSTY BALL'S..... Last edited by rage'nrat638; 07-12-2007 at 07:05 AM.

08-02-2004, 01:23 PM	#6
badpeanut Not a bad nut after all.. Join Date: Dec 2000 Location: ND Posts: 1,756	rage'nrat638, your setup looks nice. Could we get more details on your AC? Did you replace hoses? O-rings? Did you replace the dryer? Did you just evacuate and recharge with R134a? Or flush?



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