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Topic: Aluminum Radiators

in Forum: C3 Cooling and Heating Systems


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Aluminum Radiators (1/33)
 1/16/10 11:23pm
KDADDY79
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Dutchess County, NY - USA

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White '79 Corvette. It's a driver.


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E-Bay has quite a few aluminum radiators for a C3 that range in price from around $150.00 to 250.00.   These prices got my attention.
Does anyone have any experience with these lower priced aluminum radiators?
From what I've heard here and elsewhere, the best aluminum radiators for a C3 come from DeWitts for around $500.00.
Any opinions?
 
Kevin
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Aluminum Radiators (2/33)
 1/16/10 11:36pm
DaveMLifetime Member
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Flanders, NJ - USA

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1982 Black, ZZ4, Hooker Side Pipes, 3.55 Rear, Rebuilt & upgraded 700R4, All new suspension, brakes, & new Charcoal interior.


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Hey Kevin, I paid $120 for mine and it works just fine.You don't have to spend a ton of money.
Are you having problems with your stock one?
Dave


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Aluminum Radiators (3/33)
 1/16/10 11:52pm
KDADDY79
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Dutchess County, NY - USA

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No problems with the current stock radiator.

(I'm possibly going to be getting a rebuilt motor real cheap from a friend. I'm thinking in terms of "while I'm at it" with the radiator.)
I'm encouraged to hear your good review of your radiator and how little it cost.
I just might be able to pull this off!
Kevin
Aluminum Radiators (4/33)
 1/17/10 9:59am
lukesvetteLifetime Member
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HOWELL, NJ - USA

Vette(s):
1979, Targa Blue (72 Color), Pace Car rear spoiler, L88 hood, Dark blue factory interior, 525HP 406, HD 700R4, 370 gears,Steeroids, composite rear spring, TT IIs wrapped in T/A Radials.


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I bought mine from a dealer that I saw was still on there. Excellent quality and price Thumbs Up - I think mine came out to about $300 with shipping. It actually looks sturdier than the Dewitts...
Aluminum Radiators (5/33)
 1/17/10 9:34pm
aceintheholeLifetime Member
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Manteca, CA - USA

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Hey, I hope we can keep this thread going. A lot of us would like an aluminum rad. but I can't afford the 5 bills. I never thought to look on ebay. Guess I'd heard somewhere that Chinese alum. rads were the bunk. I'd love to find out that's not true.

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Aluminum Radiators (6/33)
 1/17/10 11:27pm
KDADDY79
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I'd hate to have to do it again if I got stuck with junk.
E-Bay shows a C3 "three row" aluminum radiator from "Leadfoot Racing" for $200.00 + shipping.
Dave and Paul,
What vendors did you get yours from? Figure I'll stick with a winner.
 
 
KDADDY792010-01-17 21:01:04
Aluminum Radiators (7/33)
 1/18/10 12:25am
DaveMLifetime Member
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Flanders, NJ - USA

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1982 Black, ZZ4, Hooker Side Pipes, 3.55 Rear, Rebuilt & upgraded 700R4, All new suspension, brakes, & new Charcoal interior.


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I don't remember the brand name of mine, got it from a friend who is an auto parts distrubitor.
You should PM "My7T1" (Terry) he owns a radiator shop in Mich. I know he will help you out. He helped me a lot with my AC.
Dave


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Aluminum Radiators (8/33)
 1/18/10 1:07am
lukesvetteLifetime Member
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HOWELL, NJ - USA

Vette(s):
1979, Targa Blue (72 Color), Pace Car rear spoiler, L88 hood, Dark blue factory interior, 525HP 406, HD 700R4, 370 gears,Steeroids, composite rear spring, TT IIs wrapped in T/A Radials.


Joined: 5/18/2004
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The name of the Ebay business I bought from was Entropy. These are hand made to order in the U.S.
Aluminum Radiators (9/33)
 1/18/10 9:26am
lukesvetteLifetime Member
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HOWELL, NJ - USA

Vette(s):
1979, Targa Blue (72 Color), Pace Car rear spoiler, L88 hood, Dark blue factory interior, 525HP 406, HD 700R4, 370 gears,Steeroids, composite rear spring, TT IIs wrapped in T/A Radials.


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Aluminum Radiators (10/33)
 3/2/10 9:55pm
KDADDY79
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Dutchess County, NY - USA

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Haven't bought the radiator yet. Soon enough.

Today I pulled the Vette out of the garage and let it run. I had the hood up and was looking at the radiator and what surrounds it.
 
Question is.....Does the hood have to be removed in order to change out the radiator?
Aluminum Radiators (11/33)
 3/2/10 10:29pm
aceintheholeLifetime Member
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Manteca, CA - USA

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[QUOTE=KDADDY79]Question is.....Does the hood have to be removed in order to change out the radiator?[/QUOTE]
 
Actually doesn't have to be, but it's a lot easier,... if you have the extra hands to help you lift it off. If you do, just give a little shot of spray paint on the bolts to positively mark their previous location before you remove them, and be gentle on the first lowering of the hood, once replaced, just to be sure you've nailed it (the previous location). 


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Just can't wait to get on the road again.

 
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Aluminum Radiators (12/33)
 3/2/10 10:48pm
KDADDY79
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Dutchess County, NY - USA

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Thanks Ace!
I might just tough it out and leave the hood on. I'd hate to open up a can of worms trying to get the hood realigned correctly.
 
Now all I need to do is get off my rear end and order the darn thing!!! LOL
Aluminum Radiators (13/33)
 3/3/10 1:46pm
steves74Lifetime Member
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Klamath Falls, OR - USA

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I didn't remove my hood and was able to remove and replace my radiator.  No problem for me.
  Did it by myself and didn't need any help.

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74 coupe 4 speed 350, 54K actual miles,
all original; paint, interior, engine,
split  bumper. #'s match. 2nd owner, no stress cracks.
Aluminum Radiators (14/33)
 3/3/10 8:34pm
Okie DudeLifetime Member
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Eastern Oklahoma County, OK - USA

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Done it both ways and hood off is definitely easier.  That said, hood off is only easier with at least two and alignment takes a bit of practice even with making alignment marks.
Aluminum Radiators (15/33)
 3/4/10 9:22pm
2 cruznLifetime Member
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Poquoson, VA - USA

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I did it with hood off.. seemed akward with hood on. I ran a felt tip marker around the hood hinge and alignment went back easy... definitely need 2 to take off and on again...

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Aluminum Radiators (16/33)
 3/4/10 9:41pm
lukesvetteLifetime Member
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HOWELL, NJ - USA

Vette(s):
1979, Targa Blue (72 Color), Pace Car rear spoiler, L88 hood, Dark blue factory interior, 525HP 406, HD 700R4, 370 gears,Steeroids, composite rear spring, TT IIs wrapped in T/A Radials.


Joined: 5/18/2004
Posts: 6812

Hood on by yourself is more awkward the shorter and weaker you are - the rad basically slides out at a similar angle to the hood when it's propped open - highly recommend removing the hood. Just score around the hinges for alignment to re-install. My hood has been on and off a dozen or more times - never damaged any paint...
Aluminum Radiators (17/33)
 3/30/10 5:48pm
KDADDY79
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Dutchess County, NY - USA

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The new aluminum radiator arrived. I'm hoping to start the install on it early next week.

2 Questions;

1) Is a 16 lb. radiator cap correct for a '79 C3?

2) Am I OK continuing to use a 180 degree T-stat?

 P.S. I'll be replacing the seals around the radiator, too.
KDADDY792010-03-30 15:49:33
Aluminum Radiators (18/33)
 3/30/10 8:52pm
aceintheholeLifetime Member
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I'm thinkin' ,.......yes and yes. And the air dam seals are a must. Careful when purchasing the cap. There are 2 types out there these days, vented and NOT. Ours aren't vented.

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Just can't wait to get on the road again.

 
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Aluminum Radiators (19/33)
 3/31/10 8:58am
KDADDY79
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Dutchess County, NY - USA

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Hey Ace,

16 lbs. and NOT VENTED for the cap and the T-stat can stay.

Thanks for your reply.
Kevin
Aluminum Radiators (20/33)
 4/7/10 5:22am
Phill's VetteLifetime Member
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Apache Junction, AZ - USA

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1982,150K,Renegade CFI,Hooker Side Pipes,85 fuel pump,Bilsteins,HD suspension, Aluminum radiator, SharkBar/w 5-Point Restraints. 3:73 gears coming soon.


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 Entropy is the ebay company I got mine from - great radiator two years running now. I got the dual fan radiator and bought their wire harness kit. I initially hooked up the dual fans with the stock fan connections, but that melted the plug... when I installed the harness with all the relays, fuses and correct gauge wiring, the fans came to life and the CFM flow increased greatly!
Thumbs Up  Phill's Vette2010-04-07 02:24:33
Aluminum Radiators (21/33)
 4/7/10 4:20pm
KDADDY79
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Dutchess County, NY - USA

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I'm chompin' at the bit to get this done!

I ordered a radiator seal kit from a local store. Cash 'n carry....Thought I'd save some time that way. It's been two weeks and the darn seals aren't in yet. Unhappy Ah well...Soon enough.

Kevin

Aluminum Radiators (22/33)
 4/18/10 8:55pm
KDADDY79
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Dutchess County, NY - USA

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OK, the radiator seal kit finally came in. Clap I'll be getting to work on this Thursday morning.

I thought I'd spray any bolts with PB Blaster a few times this week before I start this job.

The bolts up top were easy to find. Then I looked toward the bottom of the radiator and found two bolts on the bottom of the metal radiator support. 
Did I miss any other bolts that will need to come undone for a radiator swap?
KDADDY792010-04-18 17:56:51
Aluminum Radiators (23/33)
 4/22/10 3:31pm
KDADDY79
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Dutchess County, NY - USA

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The Radiator Seal Kit has a total of seven pieces. It's obvious to me where the 3 pieces on the top go and the 2 on the bottom.
Question  Question; do the 2 side pieces of the radiator seals go on to the sides of the radiator or the back of it next to the plastic fan shroud???
Thanks for any help!
Kevin
Aluminum Radiators (24/33)
 4/22/10 4:20pm
indy99
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Newport, MI - USA

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1980 L-48 still in the middle of a frame-off.


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Look at Doc Rebuld catalog, it usualy has a diagram of the seals.

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Aluminum Radiators (25/33)
 4/22/10 6:44pm
KDADDY79
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Dutchess County, NY - USA

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Hey Dennis,

Upon removing the stock radiator I found that it did not have the seals on the sides or the bottom. Docrebuild was a slam dunk!!! Their diagram is just what I need to finish this up tomorrow.

Thanks!!!

Kevin
Aluminum Radiators (26/33)
 4/23/10 9:49pm
KDADDY79
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Dutchess County, NY - USA

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This radiator is bustin' my chops!   Unhappy

The old (stock) radiator is 2 and 5/8 inches thick. The new one is 3". Therefore, when I ordered a stock radiator seal kit I didn't take in to account that the thickness of the seals would not allow me to move the radiator far enough forward to;
1) allow for the upper brackets to hold it down in place
2) allow enough room to set the fan shroud in to the clips just behind the radiator on the radiator support  
Live 'n learn.
Tomorrow (with some help) I'm planning on lifting out the radiator and shroud again and trimming the thickness of the radiator seals which I have already glued in place.
If I'm way off or forgetting something please chime in. Any suggestions are much appreciated!
Kevin  
Aluminum Radiators (27/33)
 4/23/10 11:06pm
jgoglickLifetime Member
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Huntsville, AL - USA

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I got a DeWitts aluminum radiator (direct replacement) to replace the aluminum radiator in my 71 when I got the new engine. It wasn't cheap, but then neither was the engine. It's been flawless. I'm not knocking the cheaper alternatives, just replaying my experience. The Dewitts was *exactly* like the original - slid right in and everything bolted up fine.
Aluminum Radiators (28/33)
 4/24/10 9:35pm
2 cruznLifetime Member
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Poquoson, VA - USA

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73 Conv, Blue-Green/White Top - 454, M21 - Dark Saddle Leather, Power Windows, A/C, Tilt/Tele, AM/FM St. (orig. and sounds like it too).#2 -- 2007 Coupe,3 LT package, Z51 option, Victory Red, Ebony Int. Clear Top.


Joined: 11/20/2004
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Ditto for me.. I got Dewitt's with dual spal fans for my 454..  but I may have considered the E-Bay type if I had known... I can't complain.. solved my running hot problems...

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Aluminum Radiators (29/33)
 4/24/10 10:56pm
KDADDY79
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Dutchess County, NY - USA

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The war is over phew..........I hope.
This was a tough job for an amateur like me.
The Ledfoot Racing brand aluminum radiator I got is a "three row" model. It's 3/8" thicker than the stock "two row" model. Once I trimmed the radiator seals it went down in where it needed to be. However, getting the (one piece plastic) fan shroud back in place was very difficult and took all afternoon. (The rad. went in and out a few times during this process.)
The toughest part with the shroud was getting the bottom of it to fit in to the clips at the bottom of the radiator suppert. A whole lotta "blue language" got thrown around, let me tell ya! The trans. lines were difficult, too.
It's in and I have no leaks. The car ('79 L-48) runs at around 160 degrees with a 180 thermostat.
The DeWitts would have been an easier fit but I had to save the cash.
Thanks for the input I got here. It's done!
Kevin
Aluminum Radiators (30/33)
 4/25/10 4:03am
indy99
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Newport, MI - USA

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Cool beans there Kevin, a new radiator and the t-stat problem solved you should be good to go in the cooling dept.    DB

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Aluminum Radiators (31/33)
 4/25/10 9:16am
lukesvetteLifetime Member
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HOWELL, NJ - USA

Vette(s):
1979, Targa Blue (72 Color), Pace Car rear spoiler, L88 hood, Dark blue factory interior, 525HP 406, HD 700R4, 370 gears,Steeroids, composite rear spring, TT IIs wrapped in T/A Radials.


Joined: 5/18/2004
Posts: 6812

Well done Kevin!! Thumbs Up I did some tweaking of my own, but I also worked on a budget on that project and saved more $ than expected and it's been in the car for 4 years now without a worry!!Clap

Worst is over now and a clean leak test to boot. Time to drive, drive, DRIVE!!! Big smile

Paul
Aluminum Radiators (32/33)
 4/25/10 10:11am
KDADDY79
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Dutchess County, NY - USA

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Joined: 8/27/2007
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"Time to drive, drive, DRIVE!!! Big smile"
 
Paul
 
You're darn right! I feel like I survived an episode of the TV shows "Dirty Jobs" and "Overhaulin'" all rolled in to one. LOL
Kevin 
Aluminum Radiators (33/33)
 4/25/10 10:24am
DaveMLifetime Member
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Flanders, NJ - USA

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1982 Black, ZZ4, Hooker Side Pipes, 3.55 Rear, Rebuilt & upgraded 700R4, All new suspension, brakes, & new Charcoal interior.


Joined: 1/27/2004
Posts: 2552

Good job Kevin, glad to hear it all worked out well in the end, enjoy.
See ya soon,
Dave


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