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Old 11-01-2010, 02:11 PM   #1
Hazieview
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Which aluminum radiator for my '81 with sb400

I have a beefed up sb 400 with a 350th trani. i already bought a trani cooler from summit racing.

Just wondering what radiator I should go with. I want an aluminum radiator with electric fans.

I do not have AC yet but I will be getting it in the future so for now I'm removing the condensor but I will be getting another one.

If you have an opinion on which AC condensor to get that would help be out as well.

thanks guys!

(motor is together, trani is together, gas tank being put in today, almost there!)
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Old 11-01-2010, 02:14 PM   #2
Hazieview
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Re: Which aluminum radiator for my '81 with sb400

thought about this one from autozone.



Part Number: 438161
Weight: 13.85 lbs
Warranty: Limited Lifetime
Application: With automatic transmission
With A/C

Notes: 1 row, 28 1/4" x 17" x 1 1/4" core size.
Description: Radiator
Core Type: Aluminum
Tank Material: Plastic
Number of Rows: 1
Core Size: 28 1/4 in. x 17 in. x 1 1/4 in.
Inlet Header: 2 3/4 in. x 18 5/8 in.
Outlet Header: 2 3/4 in. x 18 5/8 in.
Inlet Diameter: 1 5/16 in.
Outlet Diameter: 1 9/16 in.
Engine Oil Cooler: None
Transmission Oil Cooler: 8 1/2 in. (concentric)
Shipping Information: Overnight and Two Day shipping are not available for PO Box, APO/FPO/DPO or US Territory addresses.
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Old 11-01-2010, 02:56 PM   #3
Restrorob
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Re: Which aluminum radiator for my '81 with sb400

It may be worth checking this place out, I've bought 4 from them for my different vehicles.....

http://www.radiatorbarn.com/search.php?product=radiator
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Old 11-02-2010, 12:00 AM   #4
gchemist
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Re: Which aluminum radiator for my '81 with sb400

Buy a same year 454 radiator. You'll need it if you plan on running electric fans.
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Old 11-02-2010, 08:52 PM   #5
Hazieview
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Re: Which aluminum radiator for my '81 with sb400

Why do you think I need a big block radiator?
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Old 11-03-2010, 01:13 AM   #6
gchemist
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Re: Which aluminum radiator for my '81 with sb400

It's hot here!! Trust me. I've run a 454 radiator for several years with electric fans and A/C. Buy a crossflow condensor. Crossflow work better for R134 conversions.
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Old 11-03-2010, 06:25 AM   #7
Hazieview
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Re: Which aluminum radiator for my '81 with sb400

How many 'rows' do I need?

Should I get the one that says 'with AC' since I'm going to have it in the future?

What do I need to look for when is says transmission cooler? I already have an aftermarket transmission cooler so how do I know if I'm getting the right size?
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Old 11-03-2010, 08:39 PM   #8
gchemist
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Re: Which aluminum radiator for my '81 with sb400

Go Orielly's. If you buy a condensor, it should be a crossflow condensor. You will need to cover the gap. The gap between condensor and radiator will have to be closed. If not, your A/C will struggle at idle and low speeds. You need as much airflow to flow across the condensor. I run two coolers. The radiator cooler and external cooler.
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