The spark plug gap for the 1979 Ford F250 is 0.044. This gap remains the same for the 1978 and the 1980 Ford as well.
Ford uses Motorcraft Spark plugs on all there vehicles.
2001 Ford Truck F250 Super Duty P/U 2WD 5.4L EFI 8cylThe Spark Plug Gap.054 (In thousandths of an inch)
.044 inch , according to motorcraft.com
.054
.054
Spark Plug Gap is .044
The spark plug gap for a 1979 Ford F-250 with a 400 engine is between 0.42 and 0.46. This range is included in the factory settings.
.044 inch ( according to motorcraft . com )
( .044 inch ) according to motorcraft.com
According to motorcraft . com the spark plug gap for a 1993 Ford Mustang 5.0 L - V8 is : ( .054 inch )
According to one of Fords websites : The spark plug gap for the 3.0 V6 in a 1993 Ford Aerostar is : ( .044 inch )