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#101 |
Senior Member
![]() Join Date: Jan 2007
Location: Turlock, CA
Posts: 8,814
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Re: 1968 Chevrolet CST Survivior.
Looking good!
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Please help my sister in law with her battle with cancer https://gofund.me/902f6fce Thank you all so far you are angels!! Project "C10 Fever" (68 factory black 396 swb) Project "Little Sister" (70 c10 blue original paint refresh) Project "Blue Bomb" (70 c30 blue original paint refresh) SOLD Project "Vitamin C" (71 c10 orange original paint refresh) SOLD |
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#102 |
Registered User
Join Date: Sep 2007
Location: gilbert, az
Posts: 833
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Re: 1968 Chevrolet CST Survivior.
Parking lot. The 68 is home and ready for errands!
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#103 |
Registered User
Join Date: Sep 2007
Location: gilbert, az
Posts: 833
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Re: 1968 Chevrolet CST Survivior.
I have wanted to convert the factory AC/heater to just heater. I can not stand how bulky and ugly the factory AC box is.
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#104 |
Registered User
Join Date: Sep 2007
Location: gilbert, az
Posts: 833
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Re: 1968 Chevrolet CST Survivior.
I pulled the factory AC/heat out of my 68 end of summer 2023. I just bolted in a piece of wood to seal cab from engine heat.
Yesterday I pulled the wood out and cleaned the firewall. I leaned the Heater only box has two bolt holes that correspond to the AC/heat box. I bolted in the heater only Box to see what will be needed to make the change. It is not going to as bad as I thought.
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#105 |
Registered User
Join Date: Sep 2007
Location: gilbert, az
Posts: 833
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Re: 1968 Chevrolet CST Survivior.
Trying to find the correct heater core today. The new 1 from napa is aluminum and the tanks are to big for the stock clamps. I will post pics.
As far as install of the heater only box will require a couple holes drilled, and trimming a hole to allow flap door. I am not building a big dollar truck just wanting heat and defroster for occasional morning drives. It would be easier to put a "hotrod" aftermarket heater in truck but I like the factory controls in the dash. I am wanting to do the factory heater only conversion to see how it goes.
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#106 |
All stock and staying that way
![]() ![]() Join Date: Jul 2003
Location: Elkland, PA
Posts: 1,991
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NON A/C heater core is GM 3015169. OER makes a copper/brass replacement.
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1970 K/5 Blazer CST 4WD, TOTM winner December 2024! Medium Bronze, 93k ACT. miles, 350, 4 speed, rear positraction, 16.5" x 8.25" HD Kelsey Hayes wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration finally getting close to completion.. ![]() 1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor... ![]() 2017 Sierra 1500 SLT 4WD, Black, 45k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2... 2019 Canyon SLT 4WD, White, 62k miles, 3.6, 8L45, 3.23 LS, 18" wheels |
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#107 | |
Registered User
Join Date: Sep 2007
Location: gilbert, az
Posts: 833
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Re: 1968 Chevrolet CST Survivior.
Quote:
I found 2 places that sell a copper/brass online. Calling to verify they have in stock. I will post details when I get 1. Here is a pic of my original one vs the new aluminum one that is not going to work.
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#108 |
Registered User
Join Date: Sep 2007
Location: gilbert, az
Posts: 833
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Re: 1968 Chevrolet CST Survivior.
More heater conversion.
I made a filler plate to cover firewall hole. I ordered the correct heater core. Fire wall holes, trimming and flange flattening. Factory AC to heater only Now to clean/paint and install new parts. This was a fun project. I'm in AZ. Heat and defroster is nice a couple weeks/months out of the year. Will post pics after all installed. Just a dude having fun in the garage...
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#109 |
Registered User
Join Date: Sep 2007
Location: gilbert, az
Posts: 833
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Re: 1968 Chevrolet CST Survivior.
Progress.
Extra holes in firewall plugged. Gasket on heater boxes.
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#110 |
Registered User
Join Date: Sep 2007
Location: gilbert, az
Posts: 833
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Re: 1968 Chevrolet CST Survivior.
Installed. Heater hoses and power wire to switch is next. I am so happy without the AC heater box. The heater only is much less obtrusive!
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#111 |
Registered User
Join Date: Sep 2007
Location: gilbert, az
Posts: 833
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Re: 1968 Chevrolet CST Survivior.
We got heat!
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#112 |
Registered User
Join Date: Sep 2007
Location: gilbert, az
Posts: 833
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Re: 1968 Chevrolet CST Survivior.
Pic
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#113 |
Registered User
Join Date: Sep 2007
Location: gilbert, az
Posts: 833
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Re: 1968 Chevrolet CST Survivior.
Enjoyed the heater this morn!
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#114 |
chevy truck fan
Join Date: Mar 2005
Location: Gilbert, arizona 85298
Posts: 2,022
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Re: 1968 Chevrolet CST Survivior.
Congrats!!! it is nice to have heat.... especially with it sooooooo cold here! LOL!!! I have been using mine the last few days also....
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#115 |
chevy truck fan
Join Date: Mar 2005
Location: Gilbert, arizona 85298
Posts: 2,022
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Re: 1968 Chevrolet CST Survivior.
hey!! did I see your 50's truck (green-ish) at the rockpoint church gathering this past saturday morning? if so, I tried to look for you around the truck, but came back around and it (you) were already gone...
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#116 |
All stock and staying that way
![]() ![]() Join Date: Jul 2003
Location: Elkland, PA
Posts: 1,991
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Very nice. Glad you located the right core. To keep the heater hoses from getting too hot from the exhaust manifold, GM used a spring steel clip to keep them together like this:
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1970 K/5 Blazer CST 4WD, TOTM winner December 2024! Medium Bronze, 93k ACT. miles, 350, 4 speed, rear positraction, 16.5" x 8.25" HD Kelsey Hayes wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration finally getting close to completion.. ![]() 1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor... ![]() 2017 Sierra 1500 SLT 4WD, Black, 45k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2... 2019 Canyon SLT 4WD, White, 62k miles, 3.6, 8L45, 3.23 LS, 18" wheels |
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#117 |
Registered User
Join Date: Dec 2014
Location: Tucson, AZ
Posts: 771
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Re: 1968 Chevrolet CST Survivior.
Awesome!
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1987 V20 farm-hand rescue 1998 C2500 lot-rot rescue |
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