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Click on image for the lowdown. 
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| | | Forums66 Topics128,049 Posts1,055,743 Members48,426 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Dec 2001 Posts: 14,522 Moderator: Welcome Centre, Southern Bolters, Legion Hall | | Moderator: Welcome Centre, Southern Bolters, Legion Hall Joined: Dec 2001 Posts: 14,522 | I have/had the same problem. My bottom radiator outlet is 1 3/4" and the old style short water pump is 1 1/2 if my memory is good tonight. I'm planning on using an exhaust reducer to connect the two different sizes. Most FLAPS have several size reducers/connectors.
....and I saw a short 1 3/4 to 1 1/2 reducer offered by either Chevs of the 40's or maybe it was Filling Station.
NOTE: When looking for the bottom hose be careful to get the correct length. I've checked several places and some list the "correct" hose as being 13 1/4" and another place listed it as 17". Be sure you know what lengths you're looking for.
NOTE: I found some flex hoses with different size on each end but when flexed to fit my situation I felt it put just to much pressure/stain on the bottom aluminum outlet to suit me.
Hope this helps someone. | | |
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