[Bob B.]

Originally Posted by C10 - C90 Bill

The thing that puzzles me about a Diesel in a '60 or newer GMC Conventional is their choice. The Detroit was the engine of choice in a GMC. Yet, the only way to get a Detroit in these trucks was to buy a Chevrolet (offered later on in the years of the '60-'66 trucks) In my opinion, they should have offered a 4-Cylinder Detroit in them from the beginning.

When I was driving my '62 6500 with the 478 Gas, there was a Chevy C-50 or C-60 in our same neighborhood at the same time. It was about a '65. It made me feel I had the lesser of the two, lol.

That's a good point! In 1962 Chevy introduced their first diesels and they were all powered by 53 Series Detroits, both 4 and V-6's. The 53's didn't show up in GMC trucks until the 1965 DB5900, a one-year oddball version of the Chevy E80 that was replaced in 1966 by the HV/JV 7500. The 4-53 was also offered in the GMC 4000 series conventional in 1966 only. So while GMC always had the larger 71 Series Detroits, in the mid-range trucks they certainly seemed to favor the Toro-Flows. Only reason I can come up with was the the Toro-Flow was a Truck And Coach Division 'internal' product. Chevy had no allegence to either the Toro-Flow or Detroit, they were both produced by other GM divisions. Good for Chevy, I think the 53 Series were the best mid-range diesels of the era.