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More cooling for my T/A

VillaTA

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In my every present quest to tinker with and improve the reliability of my car, I was considering adding a new aluminum radiator. I do feel like my car seems hot. I don’t know how hot cause I haven’t installed a water temp gauge. But after 30 mins or so I get a warm firewall. And after some mild driving the other day, I could hear some pressure coming out of my rad overflow hose stub (my overflow hose is not installed currently). This motor has less than 1,000 miles on it since being rebuilt. Unfortunately, I don’t know who did the work or what components were used. I guess I just have some anxiety about doing damage.
I read about the factory shroud not fitting Champion radiators. I’m just looking for an easy upgrade. Any thoughts on brand suggestions is appreciated.
 

Chryco Psycho

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You need a temp gauge or a infrared thermometer at least to check the temps for real , a warm firewall means nothing ! Do you have proper insulation pads on the firewall under the dash even ?
Next thing to check is if the clutch fan is working correctly , it should be relatively free turning when cold but tight when warm , if it is not tightening up you are not moving enough air ..
How old is the rad , just having professionally cleaned may help or simple recore using the original tanks .
If you decide to do an alum rad it should not mount solid to the body , alum will not stand up to much flexing & will fail over time , a welded rad will hold up a lot better than a epoxied rad but you will pay a lot more . If you look at any modern car the alum rads are mounted in rubber isolators to prevent flexing .
Lastly all new engines run hot as they are tight & seating the parts over a few 1000 miles they will run cooler .
 

moparleo

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The sounds you hear could be due to a faulty radiator cap as well. It should hold 16 psi and should be tested. Also it is beneficial to install a coolant recovery bottle with the proper radiator cap. This will catch the coolant as it heats and expands and when the car cools down it draws the coolant in the bottle back into the radiator keeping it topped off at all times. This how all modern cooling systems work.
If you want to run a Champion radiator and have questions on shroud fitment, just contact them . They are very helpful people.
As Chryco said, you need to verify that your fan clutch it operating properly and also have the proper fan blade. Factory thermostat is 190°. Also there are different fan clutches depending on final gear ratio . This is because of the higher rpms that the engine will be running at with lower gears. Look in your FSM for more details.
 

VillaTA

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The sounds you hear could be due to a faulty radiator cap as well. It should hold 16 psi and should be tested. Also it is beneficial to install a coolant recovery bottle with the proper radiator cap. This will catch the coolant as it heats and expands and when the car cools down it draws the coolant in the bottle back into the radiator keeping it topped off at all times. This how all modern cooling systems work.
If you want to run a Champion radiator and have questions on shroud fitment, just contact them . They are very helpful people.
As Chryco said, you need to verify that your fan clutch it operating properly and also have the proper fan blade. Factory thermostat is 190°. Also there are different fan clutches depending on final gear ratio . This is because of the higher rpms that the engine will be running at with lower gears. Look in your FSM for more details.
I take it that an overflow bottle wasn’t stock equipment in 1970? Is there a direct fit item available? Will the 74 bottle kit work?
 

70chall440

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A overflow bottle is different from a recovery system, Leo is talking about a recovery system (I believe) where is the radiator can push out and recover fluid. This requires a proper bottle and cap. I do not believe any of the E bodies (70-74) had an actual recovery system, do some research about what to use and how to set it up, its not super complicated but you have to use the right components for it to work.
 

moparleo

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There are many aftermarket recovery systems out there. Even in aluminum. A recovery system requires a 2 way radiator cap to allow coolant to flow into the recovery container and then back into the radiator. Not common until the mid seventies.
 
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