Best coolant for our 60-70's Mopars?

Definitely Evans. Read the detailed "why" of it here. Whoever's asking $65/gallon can keep right on asking; that's about 50% overpriced. Their product names have shifted and drifted a little through the years; the one you want is their "High Performance" coolant, gallon or 4-gallon case.

Thanks for the links Dan. Good reading as usual. BTW the link you put for the gallon of Evans is $50, that's not 50% of $65. It's obviously cheaper by the case. My question is, is four gallons really needed? Especially if it never goes bad.

I will say the Evans coolant sounds like good stuff. I have a hard time justifying the cost though. My point is: how many millions of engines have lasted 100,000+ miles with ethylene glycol coolant in the system and the original water pump and hoses doing their job.

Things change, progress is made. Hundreds of thousands miles were logged on old bias ply tires until someone invented the radial tire. I know that we've gotten off topic from the OP's question, but what the hell, we're already in waist deep. It is my opinion that ethyl glycol would work fine in his instance, stock heads, stock radiator etc. In my build though, I have aluminum heads, radiator, water pump, timing cover all that are gonna be effected by the corrosion that occurs with dis-similar metals and water. Here is a pic of a water pump that we pulled off a crate motor that the guy swears was well maintained.



Plus, with no water there is no steam. That means no pressure building up in your cooling system which means no more blown hoses. They may get a pin hole and drip, but they aren't going to split wide open and leave you stranded.

So I guess the answer for me and some others is yes, Evan's Waterless coolant is a via option for us.