Aluminum Radiators - Alfa Romeo Bulletin Board & Forums
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post #1 of 47 (permalink) Old 05-12-2018, 01:17 PM Thread Starter
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Aluminum Radiators

Does anyone know of aluminum radiators for the Alfetta chassis? Seems like another area for weight-savings.

Stable: 1983 GTV6; 1984 GTV6; 2008 M3; 2008 Audi TT; 2007 Sport Trac
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post #2 of 47 (permalink) Old 05-12-2018, 05:22 PM
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check my ecotec build eather the 1st version or the updated one.. there is a nice al radatior in the post that will work
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post #3 of 47 (permalink) Old 05-12-2018, 07:23 PM
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http://www.okp.de/xtc2/116-Alfetta/G...ml?language=en

Glen 3.0 GTV6 2.0 156 JTS
EX 1.2 Alfasud. 1.8 and 2.0 Alfetta's 2.5 Alfa75
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post #4 of 47 (permalink) Old 05-12-2018, 07:42 PM Thread Starter
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Originally Posted by bianchi2 View Post
check my ecotec build eather the 1st version or the updated one.. there is a nice al radatior in the post that will work
Thanks. I read through 30 posts and didn't find a reference or pic of the radiator. Can you direct me?

Stable: 1983 GTV6; 1984 GTV6; 2008 M3; 2008 Audi TT; 2007 Sport Trac
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post #5 of 47 (permalink) Old 05-12-2018, 07:47 PM
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Several racers are using Griffin radiators Welcome to Griffin Custom Radiators
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Ed Prytherch
79 Spider
85 GTV6 3L
76 Suzuki GT500
2011 Jaguar XKR

A little government and a little luck are necessary in life, but only a fool trusts either of them. - P.J. O'Rourke
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post #6 of 47 (permalink) Old 05-13-2018, 10:17 AM
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here you go..google this 2 row aluminum radiator for vw golf mk 1/2 gti scirocco 1.6/ 1.8.. i bought one, fits with a little trimming into a spider.. your car i belive has more room....it is a 2 row duel pass radiator
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post #7 of 47 (permalink) Old 05-13-2018, 10:27 AM
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found org. post post 82 on org ecotec conversion,, 06052016 date
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post #8 of 47 (permalink) Old 05-17-2018, 07:54 AM
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https://www.pwr.com.au/portfolio/alf...-car-radiators

PWR make an aluminium radiator for both a 105 and 116 Alfa's
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post #9 of 47 (permalink) Old 05-24-2018, 10:26 PM
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Made in France and sold on ebay for 285 EUR. Sorry can't post URLs?! But search for the item number 263648328340 .



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post #10 of 47 (permalink) Old 05-25-2018, 07:58 AM Thread Starter
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Thanks. This is a good option.

Stable: 1983 GTV6; 1984 GTV6; 2008 M3; 2008 Audi TT; 2007 Sport Trac

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post #11 of 47 (permalink) Old 07-01-2018, 05:27 PM
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Has anyone had good experience with OKP aluminum radiators? Thinking of getting one...
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post #12 of 47 (permalink) Old 05-26-2019, 11:11 AM
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So the original post is about the Alfetta, which does not have the same space as the Spider, nor the GTV6. I am looking into this because I got a quote to re-core my Alfetta radiator for $450. There should be an aluminum radiator out there, even custom made, for close to that.

The Griffin and Jegs radiator that people have been using for GTV6 measure 27x15.5" and 28x16.5" respectively. My Alfetta GT radiator measures 23x12". The horizontal physical limitation is the body frame which I measure to be about 27".

The vertical limitations are the lower support tabs for the dimples in the bottom of the radiator and the bolt hole at the top. If I remove those two lower supports tabs and measure from the bottom of the car I get about an inch more; 13". However, it is 14" to the center of the bolt hole holding the radiator down and 16" to the top of the sheet metal.

So the Griffin radiator would work if I grind off the lower dimple support tabs, let the radiator rest on the bottom of the car, and figure out a way to attach the radiator at the top, since the bolt hole would be blocked. Going custom and not modifying the car would require a 27x12" radiator max.

I assume the GTV6 folks who have done these aluminum radiators still use the bolt hole a the top? The means the GTV6 has a deeper radiator fit that the Alfetta? From the pictures I've seen, the body has a deeper area under the bumper that houses more radiator real estate?

Does anyone have the dimensions of a stock GTV6 radiator? How does the width and depth compare to the stock Alfetta?

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Last edited by iachella; 05-26-2019 at 11:14 AM.
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post #13 of 47 (permalink) Old 05-26-2019, 11:28 AM
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Also related is the hole for the air to pass from the front of the car through the radiator I just measured to be 12.5x20", so a radiator core any bigger that that is not really helpful. If a core of this dimension is available, it might be beneficial if we can find one of those places to make the side tanks for it.

A little more searching and I find a Scirocco radiator is 12x22". Would need to weld on a tab for the top bolt and a bung for the fan switch, but at $99 on ebay, that isn't too bad. The outlet is also a better shot to the water pump which points to the passenger side.
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post #14 of 47 (permalink) Old 05-26-2019, 11:56 AM
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I had HOWE radiators fabricate a thicker radiator for me years ago.
I shipped them a spare Alfetta radiator I had sitting in my parts bin for reference.
$300 and it worked great. I added a 12" electric puller fan on the back of it.
This car had a TwinSpark engine and the radiator cleared the water pump pulley by about 1/2 inch and cleared the upper distributor that runs off the exhaust cam!
I gutted the the thermostat housing so it was simply a junction, then had a 180 thermostat held in place inside the radiator hose, between 2 hose clamps.
The other thing I did was I propped the hood up with small rubber blocks to allow heat to escape the engine compartment.
I had always thought one of the design flaws of the Alfetta GT / GTV-6 body design was the lack of hood vents to allow heat out when you're sitting in traffic.
Temp gauge never went over 180 even in hot traffic.
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'67 Duetto, '74 GTV
Past '78 Alfetta w/ TwinSpark

Last edited by 1978alfa; 05-26-2019 at 12:07 PM.
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post #15 of 47 (permalink) Old 05-26-2019, 12:00 PM
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Hi Clark:

Do you have any pictures of the radiator they sent you? Did you measure it? Did they make it to the exact dimensions of yours?

More details, please.

Thanks,

Stefano
Concord, CA
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Last edited by iachella; 05-26-2019 at 12:06 PM. Reason: salutation
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