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Early Ford Flathead Radiators and Hose Design Explained

Last Updated: Jul 09, 2015 03:38PM EDT
This article helps explain the hose size choices for our early all aluminum flat head radiators.  

SKU's 221715 and 221639

As a reference to help customers that put different Flathead motors in different years:

The motor shown below in example 1 is from a hot rod sporting a later motor 1948-53 (sometimes 47)
You can tell by the radiator hoses coming off the front of the head, this uses 1.25 diameter hoses.

The motor shown below in example 2 on an engine stand is from an early 1932-1946 motor. (again sometimes 47).  The radiator hoses come out of the center of the head.  These are 1.75 diameter hoses.  In the "war" years, these motors we substandard and most restoration enthusiasts will pull them out and use the later motors.

When it comes to our custom all aluminum radiators shown below in example 3, we have spent the time to design them with 1.25 sized hoses.  As mentioned above the later motor is a superior and more utilized setup.  In addition, it is easier to size up on hoses than down.  Purchasing a hose adapter or new hoses solves this situation with little effort.

EXAMPLE 1


EXAMPLE 2



EXAMPLE 3

1942-48 Ford Coupe
1942-48 Mercury Coupe 29A


Link to purchase online: 
https://www.radiatorexpress.com/product.asp?part_id=221715&aaia_id=1486793

1942-1952 Ford Truck 

Link to purchase online: 
https://www.radiatorexpress.com/product.asp?part_id=221639&aaia_id=1487311

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