They came in 4 displacements (actually 3) 401,477(475) and 534 cu.in. The 475 was a 477 but without the 50,000 mile warranty.
I read somewhere that the last model year for Super Duty engines was 1979/80.
What sticks in my mind was the size of the water pump it dwarfed the distributor. Also these engines used electric fuel pumps and most had electronic ignition (fired by points). I saw one being rebuilt and was amazed at just how diesel like the components were.
They also had an engine oil cooler cooled by engine coolant.
Never knew that MEL's were also Super Duty engines.
The first truck I drove in 1973 was a 1967 F-850 tandem dump truck with a 534 Super Duty @266 hp, and 5X4 transmission's.
As I remember it burned 100 gallons(imperial) or 125 US gallons of gas per day!!!
Same truck on same job but with 1160 Caterpillar 225hp diesel only burns 30 to 35 gallons!!!!!, and pulls grades faster...
No wonder with the rising price of fuel in the 70's the gas bombs were doomed.
So much for nostalgia
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