Quote:
Originally Posted by anothercarguy
So, I emptied the cooling system of fluids to take the rad out for modifications (raising the height of the filler neck (and I may even have an bleeder fitting installed at the highest point). While I was at, I tested the 180 degree thermostats. They started to open at 155 degrees and were fully open at 160 degrees. Based on this, I would say the S/W gauge is accurate, and I need another pair of thermostats on re-assembly (I'm thinking 192).
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sw gauges look great, but they have been less then accurate for a while. My experience anyway and lots of threads on it. The Old gauges peg well. I have two new water in my 38 truck left/right bank. Both off 20 degrees low, confirmed with infra red. Infra red is correct, I just do the simple math.
The cheap chrome shitty looking one from a national provider on the 36 is within a few degrees. Hate to say it.
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