I hear the 6.2 had a 50% chance of early death in the military trucks. The early 6.5 was nothing special. Then the last 6.5s with turbo was an acceptable engine, but still nothing special, and defiantly not a heavy duty engine, just satisfactory in a lighter vehicle.

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
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-