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Quote:
Originally Posted by Tom Endy
I am of the opinion that the number of rows of tubes in the radiator core is more important than the fins per inch specification. I bought a radiator a few years ago from one of the more popular radiator vendors that was specified at 10 fins per inch. I had the same problem you are describing. Around town it was fine. Climbing a grade or out in the desert it boiled over.
I thought the tubes may have become plugged from rust in the engine. I took the radiator to a radiator shop to have it rodded out. When they pulled the tanks off the tubes were not plugged, but there was only two rows of tubes.
I had the core replaced with a four row core and now the temp gauge stays locked on 160 (the thermostat setting) no matter where I travel.
I think the best solution to Model A radiators is to take an original radiator to a shop that speaks Model A and have them install a four row core.
Tom Endy
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Tubes and fins are equal. With two rows of tubes, and put on as many fins that are practical is all you can do at that point, then add a set of tubes, and so on. any time I have to replace a Radiator in anything, I get the most tubes, and fins as possible, that will fit the hole it is going in. That is any engine, years ago, I wasted a lot of money trying to get by cheap, and that is always the most expensive. also as the boys said, it could be the timing, as a Hi Comp. head, is different. Herm.