@lf-tp2511 posted:as to your question on the diameter of the hat, I do not know. But I do know to trust Tim Meyer to provide what is correct
Larry
Just take a caliper, a "Tim Meyer" or OEM thermostat and measure, it's not a trade secret, it's a plug in a hole that doesn't require long and expensive engineering studies neither by Ford, nor by Tim Meyer, nor by Flowcooler.
And for the competition I said "more or less" fair, it was to not say "unfair".