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Radiators

I'm needing to replace my radiator.
Currently has an alloy unit fitted. Came in car at purchase, brand and age unknown. Has blocked cores.

I'm looking at a 3 or 4 row copper/brass unit as a replacement. Similar to original fitted product.
As alloy holds heat and takes longer to cool then copper or brass, as a metal.

Why have these alloy radiators become so popular?
Because they are cheaper?

Looking for explanations to help guide my decision on best unit to purchase.

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the cost of copper and brass is why theses type radiators are so popular there cheaper to produce
recently we bought a 3 row core for an eh the core cost $400
having done radiators back in the 80's i was able to soldier it together myself
not a hard job to do

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Good luck finding a good copper/brass unit that does not require you to mortgage your back teeth.
Of course alloy has become cheaper than copper/brass.
Alloy scrap at the moment probably 75 cents/kg, copper probably $4.50/kg, brass probably $3/kg, so the alloy material content is way cheaper while labour remains the same, but a big kicker is not using lead solder which is not too good for ones health.
If your radiator is blocked then that has nothing to do with radiator quality.
No matter what you get, I would suggest a radiator filter in the top hose and check it on a regular basis.
They come with a screw off cap for easy cleaning.
Here is an alloy which I guarantee you is probably quite thin,however, if you would like me to check it for you, this company is 5 minutes walk from my home.http://www.carsrus.c...

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That'll be Adrad or Natrad in a,3 core.

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You've been stitched!😉

Email me
HOLDEN DOCTOR

I used to be anti alloy but the way the market has changed its almost identical in cost to have an old copper/brass unit cleaned professionally as it is to buy a new 3 core alloy. Add to that the last times I had new copper units they leaked due to poor local workmanship and I tried alloy with no worries except they look gay!!

Often you may need to modify mounting holes etc, but this seems to be par for the course with many non genuine parts these days... treat it as a 2 or 3 year purchase with any more time a bonus, they're generally $170 or less delivered to your door from eBay. I just use stockings as a filter and be sure to run quality coolant.

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Treat it as a 2 or 3 year purchase with any more time a bonus??
Does that mean that, over time, a "cheaper" alloy radiator is going to cost as much as a good copper recore (if you can find a tradesman to do a good job) by the time you buy 2 or 3 of them?
I got a 3 core copper rebuild on the radiator in our EH 11 years ago and it is still as the day I put it in. It was done by an older bloke who is semi-retired now but still owns his business.
I've seen bad copper radiators too. My wife bought an Escort new in 1980. We owned it for four years and 80,000km. The second radiator was on it's way out when we got rid of the car. The copper fins corroded to nothing almost while you watched. The EH has been driving in the same environment for 11 years and shows no sign of corrosion.
I think half of the battle in getting a radiator to last is getting a professional cooling system clean and flush whenever a radiator is replaced and using good quailty coolant.
David

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Old is good.

thats exaggeration of course, most have 2 years warranty - but was just showing that for the same $$ you could have 3, maybe almost 4 of the alloys for the same timeframe one copper would last at the same cost.

so many people do not run filters, they run 40+ year old engine block and cylinder head castings that likely did not get maintenance to coolant over those past 40 years and hence have plenty of scale ready to block any new radiator. or the classic i hear regularly after someone telling me their new radiator is running hot "oh no i didnt fit the filter yet, i thought i'd just get the new engine running first and fit the filter once i had sorted any leaks etc" 95% chance of instant blockage with a rebuilt motor...

considering the cost to professionally "rod out" a clogged core, you see why i might be thinking for the average guy, more cheap radiators over the years might help save money long term, even if it does not save local business.

some of my customers hq race cars have had expensive (like nearly $1000) alloys in them for well over 10 years still working well. i had an ebay one in mine for just a little over 12 months and it started leaking in a big way - cause the car got crashed!! (someone else driving) i'd have been spuing if it was an $800+ PWR alloy or even a $400+ copper brass natrad unit. the $168 chinese ebay one i wasnt too worried to lose it.

i bought a brand new natrad 3 core for my hq wagon in 2002, it cost me $180 as a thank you from my old boss who wangled a deal from his radiator supplier. i think that was pretty much a "give me this one radiator at your cost or i take my other business elsewhere" type deal. from day one i have run a stocking in the top hose so its never had any scale ever, but its always been a car that sits for long periods - it performs faultlessly but looks old now, the cost to replace it i am sure would be well over $400 today. would a china alloy have lasted that long?? no way, i'd say for a daily driver 5 or 6 years would be fine but 15 years i doubt.

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don`t know where you are but Unanderra radiators do a HQ 3 core copper/brass new for $499 or if you want to go fancy a 3 core tripple pass heavy duty i think was $650.

these guys have a vert good reputation.

cheers
jason

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