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1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

Radiator pipe

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Old May 30, 2005 | 01:13 PM
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Radiator pipe

What size is the top pipe that goes from the radiator to the top of my 48 flathead 8AB v-8 RT ENG.

48 FORD F-4
 
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Old May 30, 2005 | 02:24 PM
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It takes 1 1/4" hose. Is that what you're wondering?
 
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Old May 30, 2005 | 08:02 PM
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mtflat, The reasion I asked is. when I got this eng It was already taken apart and the guy had the parts mixed in with another V-8 eng out of a 47 pickup witch is different. I have never worked with flatheads before. The pipe I have there is a bigger diameter than the hose outlet on the heads. Thats why I was wondering about size.
 
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Old May 30, 2005 | 08:46 PM
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The pipe I have has a 1 1/8" inside diameter.
 
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Old May 30, 2005 | 10:07 PM
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Ok, I remember about the difference in pipe sizes. I have a 46 radiator here and the upper pipes are 1 3/4". When Ford switched to the 8BA in '48 they made the upper pipes smaller for some reason. I ran the 46 rad in my 48 for a spell when the '48 radiator was in the shop being recored.

If you have only the '46 radiator, here's a trick I got from the flathead gurus on the msn group. Try using short pieces of 1 1/4" hose as a sleeve inside the 1 3/4" at the top of the metal pipe just before the radiator. It's hard to explain, but makes sense when you look at it.
 
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