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Mod | | | Forums66 Topics128,110 Posts1,056,241 Members48,437 | | 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: Apr 2012 Posts: 37 New Guy | | New Guy Joined: Apr 2012 Posts: 37 | My original radiator in the '55 second GMC with a 270 was ruined. It was a Harrison built in Nov. '55. I was given a 48 GMC 300 with a 270 and the radiator is fine. The 48 bolted right in and the two main differences are that the bottom hose "collar" is a sweeping 90 rather than straight, and the core is 1/2" taller. The overall dimensions of both are identical. Is there a problem running the '48 in the '55?
"Upon the plains of hesitation bleach the bones of countless millions, who when on the dawn of victory paused to rest, and there resting died." - John Dreschmer
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