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Click on image for the lowdown. 
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| | | Forums66 Topics128,052 Posts1,055,770 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!
| | THANKS!
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: Oct 2006 Posts: 1,847 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 1,847 | just got my new radiator from US radiator, they polished the top tank for an additional $50, if I knew how to post pictures, you would all be jealous. If it lasts anywhere as long as the original. I would highly recommend them (US radiator), beautiful work.
Last edited by brokenhead; 05/27/2014 11:27 PM.
| | | | | Joined: Jan 2010 Posts: 4,263 Shop Shark | | Shop Shark Joined: Jan 2010 Posts: 4,263 | Email me the pic...ill post it for you
I've used us radiator in the past. I also recommend them. | | | | | Joined: Dec 2000 Posts: 3,399 Gas Pumper | | Gas Pumper Joined: Dec 2000 Posts: 3,399 | The one I just got from them has 12 mounting holes. They told me the reason for the extra holes is so when you install a newer style 235/261 in your AD, by moving the radiator UP to the next set of holes puts it further away from the fan due to the slanted brackets. I dunno about that. But its a really nice radiator. Moving it up isn't good for air flow since the water pump is already too low on the newer engines. Not sure how the sheetmetal in that area would relate to the issue since I am not that far yet. Very good quality and the only (other) way to tell its not stock is that it isn't stamped with the year of the truck and the Harrison logo is missing.
| | | | | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | | | | | | Joined: Oct 2006 Posts: 1,847 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 1,847 | yes, I'm gonna take pictures here directly, at least they will be on the camera. Maybe my wife can help me post them. Then I am gonna install it. It will almost be a shame to use old hoses, even though they are only about a year old. | | | | | Joined: Dec 2000 Posts: 3,399 Gas Pumper | | Gas Pumper Joined: Dec 2000 Posts: 3,399 | New pics in the Bolt Bucket link to the new US Radiator I got. I put the original 1950 3100 radiator beside it so you can compare for yourself.
Its the second choice below in my signature.. More Pics in the Bolt Bucket. Seemingly lots happening here, but mostly lots of sanding as usual!
The new one is far better spec wise.. here are the specs:
Make / Model
Chevy Truck
Year(s)
1948-54
Engine
6 Cyl
Notes
1/2 Ton - 3/4 Ton, Special Brackets For More Clearence w/ Later 6 Cyl Conversions
Material
Copper/Brass
Available Cores
Standard Automotive
High Efficiency <--- THIS ONE (3 Row)
Optima
Core Size
22-1/2 x 20-1/2
Available Rows
3,4
Cooler Size
6x1/8 NPT
Flow Type
Downflow
Inlet Size
1-1/4"
Outlet Size
1-1/2"
They say they use newer technology and fit smaller copper tubing in to increase efficiency. I needed it to handle AC someday. | | |
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