Re: Will a 38 Dodge radiator cool a 440?
[Re: earlymopar]
#808642
10/04/10 03:20 PM
10/04/10 03:20 PM
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Joined: Jun 2004
Posts: 1,318 central Kentucky
moprod
pro stock
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pro stock
Joined: Jun 2004
Posts: 1,318
central Kentucky
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Got a Aluminum radiator in my '35, new water pump, new 180 thermo and mine still runs warmer than I like. Yesterday, 55 degree weather on the interstate running 195, stop in traffic goes to 210. Have no room for a factory type fan, only using electric puller set to kick on at 185. I have an electric gauge wondering if a mechanical would read different, car shows no signs of overheating?
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Re: Will a 38 Dodge radiator cool a 440?
[Re: moprod]
#808643
10/05/10 01:20 AM
10/05/10 01:20 AM
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Joined: Jan 2003
Posts: 10,558 Freeport IL USA
poorboy
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,558
Freeport IL USA
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I have to wonder how congested it is under your hood. For the cooling system to function, air that passes through the rad has to be able to exit from under the hood. Many guys close up most of the air exit routes with street rods. When the flathead 6 was there, air exited around the sides of the engine, through the louvers on the inner fender panels, and under the floor around the bell housing. When you fill those areas with V8 engine, headers, brake boosters, and remove the louvered inner panels, you leave little room for the heated are to exit.Look for ways to improve air flow through the engine compartment.
Also, over heating on the highway can be caused by a lean engine, too advanced timing, or moving the coolant through the system too quickly. Could be a defective gauge but really, 210 is not overheating, water boils at 212 and if its under pressure like in a closed cooling system, that boiling point can be as high as 250. It may be higher then you (and I) would like, but not hot enough to damage the engine. How does it do when it gets hot outside, or driven around town? Gene
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Re: Will a 38 Dodge radiator cool a 440?
[Re: poorboy]
#808644
10/05/10 10:00 AM
10/05/10 10:00 AM
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Joined: Jun 2004
Posts: 1,318 central Kentucky
moprod
pro stock
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pro stock
Joined: Jun 2004
Posts: 1,318
central Kentucky
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Gene, in the summer when temps were in the 90's it still ran the same temps. The louvered inner fenders are still in the car also.
Last edited by moprod; 10/05/10 10:03 AM.
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Re: Will a 38 Dodge radiator cool a 440?
[Re: moprod]
#808645
10/06/10 12:18 AM
10/06/10 12:18 AM
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Joined: Jun 2008
Posts: 251 Lithonia, Ga
36PLYM
enthusiast
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enthusiast
Joined: Jun 2008
Posts: 251
Lithonia, Ga
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I also have an aluminum radiator in the 36, the small block does fill up the engine bay. I had a problem with the fan coming on at 220, engine temp. Moved the fan switch from the radiator to the intake. Now it comes on at 200 and off around 190, no more dieseling and seems to be cooler all around.
36 Plymouth Coupe 318 w/360 heads 518 trans 8 3/4 rear Ga. Tech BCE'78
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Re: Will a 38 Dodge radiator cool a 440?
[Re: earlymopar]
#808646
10/06/10 05:51 PM
10/06/10 05:51 PM
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Joined: Sep 2010
Posts: 40 Santa Cruz, Ca
4woody
member
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member
Joined: Sep 2010
Posts: 40
Santa Cruz, Ca
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Quote:
I did not have a stock radiator to rebuild in doing my 37' Dodge. I also felt and feel that most of the aftermarket radiators that are made for 30's era cars are way over-priced even though they are good products.
I bought a $180 aluminum cross-flow radiator (summit or others), turned it 90 degrees to fit my narrow grill shell and radiator support, plugged the existing inlets and outlets and added an inlet and outlet in the upper and lower radiator hoses. Works great.
- EM
Got a photo? You plugged the existing inlet/outlet and then put new ones into the tank??
Just want to understand what all you did. Thanks
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