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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

1 Row Stock Radiator?

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Old Nov 9, 2006 | 01:18 PM
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1 Row Stock Radiator?

Does anyone in here know how many rows the STOCK radiator has for 1980 - 1986 F-150? My application is a 1985 F-150 302 atomatic 2-bbl carb, and the dealer replacement lists a 1 row radiator. Does this sound correct?
 
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Old Nov 9, 2006 | 01:22 PM
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That's what mine has (86 302 EFI). If you upgrade to the 2 row, you need to change the fan shroud too...
 
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Old Nov 9, 2006 | 01:26 PM
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Mine is a one row and it works great. When I first got the truck I was doubtful, but I took it to Baja in hot weather, heavily loaded and the temp never went above normal.
 
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Old Nov 9, 2006 | 01:35 PM
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Same here. One row and the 302 w/ AOD is still running fine 150,000 miles and 23 years later. That's in South Texas and the Texas gulf coast.
 
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Old Nov 9, 2006 | 05:02 PM
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my 86 302 EFI originally came with one row. After some motor work and a restoration i put in a three core and it works great.
 
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Old Nov 9, 2006 | 06:35 PM
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From an earlier thead on the subject:

https://www.ford-trucks.com/forums/4...light=radiator
 
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Old Nov 13, 2006 | 04:32 PM
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Thanks guys! Does anyone know who made the stock radiator that Ford used in their F-150s in 1985? I have heard Modine from one source and then someone else told me Visteon made the factory piece. My stock 1 row radiator has lasted me for 22 years so far, and I would like to get an exact replacement without paying Ford $200.
 
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Old Nov 13, 2006 | 10:31 PM
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Look in your yellow pages. Any decent radiator shop should be able to put a new core in your radiator and make it good as new. My 1-row works fine, but I wouldn't be opposed to putting a 2-row in it if it needed fixing anyway.
 
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Old Nov 14, 2006 | 05:00 AM
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I used to think if you had A/C you got a thicker radiator, but going over my 80-83 parts book shows that all F-series got a 1 1/2" thick radiator, except:
80-82 302 AT w/ HD Cooling...2 17/64", 80-81 351W MT w/ HD Cooling...2 17/64, 80-81 351W AT with A/C...2 17/64". 83 diesels and 460's....3".
There were an assortment of widths and heights though.
Ford used four categories....Std Cooling, Extra Cooling, HD Cooling, and A/C.
 
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Old Nov 14, 2006 | 09:38 AM
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Bottom line is, your are better off to increase frontal area rather than thickness.
 
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Old Nov 14, 2006 | 11:00 AM
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Thickness helps too, slows down the flow giving it more time to cool. ie coolant will spend twice as long in a 2 row rad than a 1 row.
 
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Old Nov 14, 2006 | 11:12 AM
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autozone has a stock replacement unit and a multicore available for around $20 more we put 1 in my brothers truck when his was plug'd and it worked really good. i think it ran around $150 give or take
 
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Old Nov 14, 2006 | 11:13 AM
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Originally Posted by loudfords
Thickness helps too, slows down the flow giving it more time to cool. ie coolant will spend twice as long in a 2 row rad than a 1 row.
This is a widely held belief. But in fact, more rapid flow increases turbulance inside the tubes, breaking up laminar flow resulting in more efficient cooling.

Check out the link in post #6
 
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Old Nov 14, 2006 | 12:08 PM
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but with a multi-core u double the surface area and decrease the flow rate and ineffect giving the coolant more time for thermal transfer
 
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Old Nov 14, 2006 | 12:41 PM
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The slower the flow, the more the coolant molecules cling to the inside surface of the radiator tubes. The rate of flow within each tube is not consistant. Increasing the velocity creates turbulance which exposes more molecules to the tube surface which makes for greater efficiency.

Each row of tubes behind the front row is less and less effective because the air, having been heated by the front row, is hotter. The greater the temperature between the air and the tubes, the greater the heat transfer. The most efficient radiator would have only one row, but the vehicle design does not allow for that much frontal surface area.
 
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