Turbo 350 Question

I should know this but... Which Coolant line from a T350 is the output line (hot one)? Is it the top or bottom?

thanks

Pat

It has been a while, but I seem to remember the top line is pressure. On any automatic, it's the line that is closest to the pump.

Thanks guys. I am putting a fan on my cooler and needed to know which line to put the temp controller in.

Pat