aluminum radiator

I have a 185 degree thermostat in my el camino at the moment, when the car is first cold it gets up to almost 200-210 degrees before the thermostat opens up and cools off the engine. Afterwards it acts completely normal. Is this typical behavior or should I replace it?

I just bought a new radiator and I was reading around, they have their liquid chill it’s recommended but they take any coolant I know my Monte Carlo takes the green stuff but you can’t use any cheap coolant without the packages or whatever because of the build up on the aluminum, the top two...

Just finished building a new sbc with aluminum heads and griffin aluminum radiator and electric fans for my 87 el Camino. I was wondering what type of antifreeze is best for this setup. Griffin radiator recommends Evans waterless but it is real expensive. I read that Zerex G05 is good for...