Gas Engines:
* 400 Cubic Inch V8: This engine was a popular choice for lighter duty applications. It produced around 175 horsepower.
* 460 Cubic Inch V8: A more powerful gas option, producing roughly 210 horsepower.
Diesel Engines:
* 6.6L (400 Cubic Inch) International Harvester DT466: A powerful diesel engine that offered good fuel efficiency and torque. This was a very popular choice for heavier duty applications.
* 6.9L (420 Cubic Inch) Ford V8: A slightly smaller diesel engine that was also popular for heavy-duty applications.
Other Options:
* Cummins Engines: While not as common as the IH and Ford diesels, some F600 trucks might have been equipped with Cummins engines.
To determine the specific engine in a 1978 F600 truck, you'll need:
* The Vehicle Identification Number (VIN): This is the most reliable way to determine the exact engine specifications. You can use the VIN to search online databases or contact a Ford dealership for information.
* The Truck's Build Sheet: This document will list all the specifications of the truck, including the engine.
* The Truck's Owner's Manual: The manual may list the engine specifications.
Please note that the availability of specific engines might vary depending on the region and specific truck configuration.