Quote:
Originally Posted by 38 Ford Guy
Henry thanks for the information glad you were diligent in your research. I ordered a set of Stants from Summit and plan to put them in my Flathead as soon as I get them. Made in the Good Ol' USA  . Looks like the opening is within 1mm of the old flip stats. I use the Skip Hanney pumps so these will be great. The 330 stats from Robert is what I had but if you look at the opening between the hose after they are cut down it is very small not allowing a lot of flow. I think these will be the ticket. |
Here's what all modern thermostats are competing against - Ford's original design.
These are NOS Ford stats for my 47 that a very kind barner just sold to me. Just compare them with the modern stats and you'll see the real advantages of them. They have a butterfly valve that swivels clear out of the way of water flow. And, look at the size of that hole once it's opened up! Way bigger than any modern stats. And, the mechanism that opens it is small and much less intrusive into the water flow than modern stats.
The butterfly valve closed.
Fully open.
The spring that pulls it shut rather then pushing it like modern stats.
This Ford NOS stat has an opening of 29 mm compared to the modern replacement of 25 or even the Stant of 28. That's 7% higher volume than the Stant and 34% higher than the current replacements. Too bad no one makes 'em like this any more.