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[quote name='Roto-Ray' timestamp='1299809124' post='428864']

Truck1882 is correct, the different model numbers correlate to the engine options:



608 - Thermodyne Gas, 276HP

611 - Thermodyne, 260HP

612 - 315HP

685 - Maxidyne 237HP

686 - 285HP

688 -350HP

690 - 275HP

719 - Gas V8, 300HP

795 - Gas V8, 325HP

797 - Gas V8, 375HP



Hope this helps....

[/quote]

You couldn't explained it any better. The CF series was the CF-600 series. If it had the V-8 enginge, it was a CF-700 though. The gas engine used was the 707 C Thermodyne. It was availableup to 1972. Then after that, the diesel was the only engine available.