The spark plug gap for a 1978 F250 typically ranges from 0.044 to 0.050 inches, depending on the specific engine and manufacturer specifications. It is crucial to consult the vehicle's manual or a trusted automotive resource to determine the exact gap required for optimal engine performance. Using a gapping tool, adjust the spark plug gap to the recommended measurement before installing them in the engine.
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.
( .035 inch ) is the spark plug gap
The spark plug gap is ( .044 inch )
.044
the gap is .044
( .044 inch ) according to motorcraft.com
0.045
Check the Vehicle Emissions Control Information ( VECI ) decal located in the front of your engine compartment ( it will show the type of spark plugs to use and the spark plug gap )
Most use a .045 gap.
.044 inch , according to motorcraft.com
Check the Vehicle Emission Control Information ( VECI ) decallocated in the front of your engine compartment ( it will show thetype of spark plugs to use and the spark plug gap )
2001 Ford Truck F250 Super Duty P/U 2WD 5.4L EFI 8cylThe Spark Plug Gap.054 (In thousandths of an inch)