Tranny Cooler

I was wondering for my watercooled system im going to make if I can use a Transmission cooler?? Its kinda big but I was going to make a seperate unit for the cooler, reserve, and the pump. What do you think???

If its aluminum, like most are, you'll probably have corrosion issues if you have a copper block - unless you run distilled water, water wetter, and take extra precautions.

i plan on running a copper block so it would kinda be a problem?? Where can I get some info about corrosion issue?