1970 Cuda 440, aluminum heads, water pump, still has brass radiator. I always used Prestone green, but that’s not easy to find. What are you guys using in similar engines?
The brand doesn't matter. Use distilled water and small amount of anti-freeze and you'll be fine. Important thing is to change it on a regular basis. Once a year or at least once every two years. Don't let it sit in the car for years and years.
