Jimmie V I would go with a stock design radiator, not aluminum.
If you introduce any aluminum components in a cooling system you should change the anti-freeze at 15,000 mile intervals. The antifreeze can become acidic and can cause deteriorization of alumnium components.
This same acidic condition isn't nearly as caustic to steel components.
Do a Google search on "acidic antifreeze aluminum".
Why use aluminum and introduce another variable?
Last edited by Hot Rod John; 07/06/2011 1:46 AM.