I have a 52 1 ton, and a 48 2 ton, best I can tell the available space for the engine is exactly the same.
Top of hood down to engine mounts is the same, and radiator to firewall is the same.

The advantage of big truck stuff is fitting tires up to about 38".
These big truck fenders would look out of place on a truck with small tires (less than about 32 to 34")

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
---All pictures---
"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-