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Old 01-04-2007, 08:43 AM   #1 (permalink)
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Cooling 500+ HP

anyone getting a stock small block radiator to cool 500 + hp. I get about 10 min. of use on street or 1 hard run,then run hot.I use a victor water pump, but that is not enough for me. Also what aluminum rad company has a good, but reasonable priced rad that will work. I need passenger side inlet + outlet. Not looking to spend $600 plus if not needed.
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1965 F100- 390,3 speed std. 270 compcam,411\'s
1970 Mach1- 408,AFR 205\'s,4 speed,411\'s
1999 Expedition 4.6 auto
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Old 01-04-2007, 10:58 AM   #2 (permalink)
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Cooling 500+ HP

I had marginal overheating when stopped at a red light in hot weather with a very good 20" rad, shroud and flex fan on my 418w. I purchased a 24" griffin rad, stock shroud, advanced the initial timing and my problem went away.
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Old 01-04-2007, 02:53 PM   #3 (permalink)
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Cooling 500+ HP

http://www.aaispeed.com/product_info...702c4c3fe72742

Big End radiators! Great prices, excellent quality and will cool 500 horsepower easily. Cools my setup down w/ no problem even on a hot day sitting in traffic. And I modified my outlets which was no big deal if you can tig weld. If you can't, a competant shop can modify it for you if you have to have the upper out let on the passenger side. I am not sure, but if that is the case, there might have to be some internal baffling done because of the way aluminum radiators are constructed versus copper. When I did mine, I had to baffle mine because I had to change the lower outlet from the passenger to the driver's side so the coolant would flow through the entire radiator._________________


<font size=-1>[ This Message was edited by: blown68 on 1/5/07 5:56am ]</font>

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Old 01-04-2007, 08:07 PM   #4 (permalink)
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Cooling 500+ HP

I run a stock 3 core radiator on my 351w. Same radiator i ranon my 393 stroker.
I use an electric water pump (35gal hr), Have run it also with stock alum ford water pump and an electric fan i found in the bone yard.. Keeps me cool even here in Tennessee in the summer..



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Old 01-04-2007, 08:34 PM   #5 (permalink)
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Cooling 500+ HP

I have an old 66 mustang that had the same problem. installed a 16" 22+CFM electric fan and a 160 deg T-stat and not running a little cool and need to go up to a 185 deg.


I have an old 66 mustang that had the same problem. installed a 16" 22+CFM electric fan and a 160 deg T-stat and not running a little cool and need to go up to a 185 deg.

http://store.summitracing.com/partde...p;autoview=sku

The only thing I would do different is try an S blade fan. They are said to be a little quieter. I think it literally pulls me down the track.

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Old 01-04-2007, 08:51 PM   #6 (permalink)
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Cooling 500+ HP

AFCO racing products makes some of the nicest fully tig welded and polished mustang rads i have ever seen for about $200 max. They even make double pass rads and ones to your size with many different outlet configs .
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Old 01-05-2007, 08:01 AM   #7 (permalink)
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Cooling 500+ HP

Ever thought of using "evan coolant", this stuff is great and cools my car with stock rad very well, i usualy don't even turn my electric fan on. search the web for evan coolant for more info. I also use this coolant in my dirtbike and never have had a overheating problem once i changed over. Just a thought.
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Old 01-06-2007, 09:29 AM   #8 (permalink)
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Cooling 500+ HP

I had the local rad shop re-core my original 289 rad with a high density core (lots of tubes) runs cool with my 393, and looks bone stock. I use an electric fan
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Old 01-08-2007, 02:51 PM   #9 (permalink)
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Cooling 500+ HP

Thanks. looks like more parts to buy.
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1965 F100- 390,3 speed std. 270 compcam,411\'s
1970 Mach1- 408,AFR 205\'s,4 speed,411\'s
1999 Expedition 4.6 auto
2000 Mustang 3.8, 5 speed
+ other Fords
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Old 01-08-2007, 03:02 PM   #10 (permalink)
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Cooling 500+ HP

http://griffinrad.com/muscle.php

I got one of these for my 65 with a 414. Great fit and keeps my .060 over engine cool. About 170 in winter, and 180-190 in summer. This with a derale fan. They are about 300-500 dollars depending on application. Summit sells them. You need one of the bottom two applications depending if your car is and auto or manual.

<font size=-1>[ This Message was edited by: smokey212 on 1/9/07 6:03am ]</font>
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Old 01-08-2007, 08:07 PM   #11 (permalink)
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Cooling 500+ HP

I used a $179 Summit Universal 28" frame rail to frame rail "chevy" type with a Taurus junkyard fan. It replaced my $$$$$ Be Cool unit.



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