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Where to buy, Radiator plastic tank

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Old May 26, 2025 | 11:47 AM
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88Form's Avatar
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Where to buy, Radiator plastic tank

I just got a crack in my radiator, in front of the return pipe. It really close to where it's crimped so will probably need a whole new part.
Is there anywhere you can buy the return(left) side for a 305 auto radiator?
Like this:
https://www.ebay.ca/itm/393992451769
Otherwise will be looking at a whole new rad

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Old May 26, 2025 | 12:08 PM
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LiquidBlue's Avatar
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From: Austin, TX
Car: 90 Formula / T-tops
Engine: 305 TPI
Transmission: MD8
Re: Where to buy, Radiator plastic tank

interesting, didn't know they were put together that way. always assumed it was one piece, not repairable. good luck with your search, looks like you are on the right trail.
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Old May 26, 2025 | 01:10 PM
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Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Where to buy, Radiator plastic tank

I have used tanks from damaged radiators. Find an old-school radiator shop and they could get you fixed up.

Last edited by TTOP350; May 27, 2025 at 06:06 AM.
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Old May 26, 2025 | 01:13 PM
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Car: 91 WS6 GTA
Engine: 5.3
Transmission: 4l60e
Re: Where to buy, Radiator plastic tank

a new radiator from autozone with a lifteime warranty is like $150 dollars.
why would you want to attempt to repair yours?
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Old May 26, 2025 | 01:21 PM
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From: Virginia
Car: 1989 Camaro Iroc-Z Z28
Engine: L98
Transmission: 700r4
Axle/Gears: 2.77 G80
Re: Where to buy, Radiator plastic tank

https://www.ebay.com/itm/333476473826

I purchased one a few months ago.

No leaks or dents. 65 usd shipped

Last edited by RottenThomas; May 26, 2025 at 01:29 PM.
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Old May 26, 2025 | 04:47 PM
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Re: Where to buy, Radiator plastic tank

Bit of context, I am on the other side of the Atlantic 😅 would like to keep shipping costs down.
Wow that ebay listing seems impossibly cheap, thanks I will look into it.
Even if I replace the rad I would still like to try fix the old one, all part of the learning process.
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Old May 27, 2025 | 08:50 PM
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Car: `86 SS / `87 SS
Engine: L69 w/ TPI on top / 305 4bbl
Transmission: `95 T56 \ `88 200-4R
Re: Where to buy, Radiator plastic tank

The tanks are out there, but I gave up on that idea because it was for a resto and the manual trans. tank wasn't available.

No one bothers because aluminum will stress crack from rebending. And the other tank will follow the first. By the time you find the gasket and tank and do the work, you still have a used radiator. Flow is worse at the bottom, and you don't get the life a new one will give.
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Old May 27, 2025 | 10:14 PM
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Tom 400 CFI's Avatar
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Car: '92 Corvette, '89 1/2-a-'Vette
Engine: LT1, L400
Transmission: ZF6, T5
Axle/Gears: 3.45, 3.31
Re: Where to buy, Radiator plastic tank

The life of the radiator core, and the performance/flow thereof, should be virtually infinite....if the car has had decent cooling system maintenance. For evidence, let me share with you a photo of the radiator core out of a Chev truck I used to have. This was a radiator pulled from my '96 Silverado after I hit a cow, at 243,000 miles/17 years. That core is pretty mint.....






I'm all for saving money. ALL for it. A $39 side tank repair is better than a $150 radiator, any day of the week, if the repair is good, and works. If the repair is good, and works.

As a cheap fk, when we had our CTS-V, it started leaking coolant out of a side tank o-ring. Between the core and the tank. NBD, I took it to a rad shop, they popped the tank off, put in a new o-ring, and crimped the side tank back on. 60 bux. No, the aluminum did not "stress crack". The repair was good, and everything worked out great, but a couple months later, the other side tank...cracked. I replaced the radiator.

So? I'm all for repairing things and maximizing the life/value out of that thing. In the case of repairing radiators that were originally built as cheaply as humanly possible -and still work, it might not be worth it.
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