Radiator transmission cooler ??'s - Team Camaro Tech
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post #1 of 4 (permalink) Old Mar 24th, 00, 05:26 PM Thread Starter
Senior Tech
Join Date: Jan 2000
Location: Highland Village, TX, USA
Posts: 138

I'm going from a SB to a BB with a TH350. My question is I was going to buy an aftermarket radiator. Yet, what do I do with
the aluminum hoses going from my original
transmission to my TH350. Ya, I take them
out but, do I just put some plugs in my
transmission or what??
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post #2 of 4 (permalink) Old Mar 24th, 00, 06:02 PM
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Join Date: Dec 1999
Location: Hayward,Ca,USA
Posts: 287

If you need to run a trans cooler, either the one in the radiator or an aftermarket. If you plug the lines coming out of the trans you will be replacing that too. Most "aftermarket" radiators will come with the cooler in the tank, this is barely sufficient for stock applications.

Steve R.
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post #3 of 4 (permalink) Old Mar 28th, 00, 05:39 PM
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Join Date: Mar 2000
Location: Mesa, AZ
Posts: 744

Steve is correct, do not plug your cooler lines. You should buy the biggest tranny cooler that will fit. Your tranny will last longer. If you use the radiator and a cooler make sure the fluid goes to the radiator first. I prefer not to use the radiator, only a cooler. Some people disagree...

67 410sb 11.76 @116.6
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post #4 of 4 (permalink) Old Mar 29th, 00, 05:20 AM
Join Date: Mar 2000
Posts: 41

I would never advise anyone to plug the cooling lines in their transmission, especially when increasing performance and (if applicable) installing a higher stall torque converter!

As far as cooling goes, many aftermarket manufacturers recommend running the external cooler in series (out from) the radiator because the net temperature loss will be greater than just using the external cooler in itself, no matter how large it is. Also, only one cooling line has to be modified in this configuration, as opposed to cutting both of them to run to the external cooler only.

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