Interesting thing is now Summit Racing is selling these with no experience to back it and Horsepower TV is endorsing it also.
Now I do use Evans Cooling NPG+ coolant. It's straight coolant no water with a boiling point of 375 degrees. It's supposed to eliminate all hot spots in the engine. Seems to work well. Wear life of 10 years/ 100,000 miles. Pricey but I think it worth it. A gal.--$25, 5 gal. or more--$22.50 and so on. Radiator cap psi is 0-7 lbs.


1954 custom 1-ton (1 of a kind)