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Click on image for the lowdown. 
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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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| | | | Joined: Oct 2010 Posts: 21 New Guy | | New Guy Joined: Oct 2010 Posts: 21 | I had the 4 row radiator in my 66 C20. In 1975 I install a 396ci big block in the 66. In 1979 I went to the 454. I built a 6 core radiator out of two 3 core radiator to save me from the engine heat. The gearbox was a turbo 400. I still have the 6 core radiator hanging out. Good Luck
1940 Chevy 1 1/2 ton, 1959 Chevy 1/2 ton, 1966 Chevy C20.
I can explain it to you but I can't help you understand it.
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