The Ford Barn

leon bee · 03-19-2018, 05:45 PM

This is another question I'd like to understand. I already went to the plumbing supply and got me a work-around. Been working on my 8BA, got 2 really ugly radiators out on the back porch. I guess I just thought the upper inlets would be 1 1/4" like my new 8BA hoses. But they both have 1 3/4" inlets. So I'm wondering what's the deal.

I found a couple old posts, but didn't understand well enough. Then I got to thinking, do the older engines have 1 3/4 spouts at the top of the head? Don't have an older head here to look at. Did the newer radiators have 1 1/4" inlets? Thanks!

JSeery · 03-19-2018, 05:55 PM

Radiators upper inlets are 1.8 and the aftermarket head outlets are 1.8 (so are the original head outlets).

42merc · 03-19-2018, 08:35 PM

[QUOTE=leon bee;1607043]This is another question I'd like to understand. I already went to the plumbing supply and got me a work-around. Been working on my 8BA, got 2 really ugly radiators out on the back porch. I guess I just thought the upper inlets would be 1 1/4" like my new 8BA hoses. But they both have 1 3/4" inlets. So I'm wondering what's the deal.

The deal is : '32 thru '48 Ford cars (47 trucks) use 1 3/4" upper & lower radiator outlets.
1949 ('48 trucks) thru '53 Fords use 1 1/4" uppers & 1 3/4" lowers.
The earlier radiator can be used with the 8ba if you use a piece of 1 1/4" hose as a spacer on the 8ba head outlets & then use 1 3/4" hoses from the radiator to the engine.

leon bee · 03-19-2018, 10:32 PM

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Thanks a lot, guys. I'm gonna go look at pictures some more.

03-19-2018, 05:45 PM	#1
leon bee Senior Member Join Date: May 2017 Location: Arkansas Posts: 611	More General Info?? Top Radiator Hoses This is another question I'd like to understand. I already went to the plumbing supply and got me a work-around. Been working on my 8BA, got 2 really ugly radiators out on the back porch. I guess I just thought the upper inlets would be 1 1/4" like my new 8BA hoses. But they both have 1 3/4" inlets. So I'm wondering what's the deal. I found a couple old posts, but didn't understand well enough. Then I got to thinking, do the older engines have 1 3/4 spouts at the top of the head? Don't have an older head here to look at. Did the newer radiators have 1 1/4" inlets? Thanks!

03-19-2018, 05:55 PM	#2
JSeery Member Emeritus Join Date: Nov 2012 Location: Wichita KS Posts: 16,132	Re: More General Info?? Top Radiator Hoses Radiators upper inlets are 1.8 and the aftermarket head outlets are 1.8 (so are the original head outlets).

03-19-2018, 08:35 PM	#3
42merc Senior Member Join Date: Feb 2011 Location: Buchanan, MI Posts: 676	Re: More General Info?? Top Radiator Hoses [QUOTE=leon bee;1607043]This is another question I'd like to understand. I already went to the plumbing supply and got me a work-around. Been working on my 8BA, got 2 really ugly radiators out on the back porch. I guess I just thought the upper inlets would be 1 1/4" like my new 8BA hoses. But they both have 1 3/4" inlets. So I'm wondering what's the deal. The deal is : '32 thru '48 Ford cars (47 trucks) use 1 3/4" upper & lower radiator outlets. 1949 ('48 trucks) thru '53 Fords use 1 1/4" uppers & 1 3/4" lowers. The earlier radiator can be used with the 8ba if you use a piece of 1 1/4" hose as a spacer on the 8ba head outlets & then use 1 3/4" hoses from the radiator to the engine. Last edited by 42merc; 03-19-2018 at 08:42 PM.

03-19-2018, 10:32 PM	#4
leon bee Senior Member Join Date: May 2017 Location: Arkansas Posts: 611	Re: More General Info?? Top Radiator Hoses Sponsored Links (Register now to hide all advertisements) Thanks a lot, guys. I'm gonna go look at pictures some more.