I was looking at one of the Ford websites and it shows for the 4.9 liter / 300
cubic inch inline six cylinder engine in 1966 :
( for light duty the spark plugs are gapped at .035 inch )
( for medium duty the spark plugs are gapped at .030 inch )
The 1966 Ford Mustang 200 cubic inch straight six spark plug gap is .032 to .036 inch
.052-.056
.32 to .36
I have a set in a 1966 Ford 289 2barrel engine.
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.
On a 1996 Ford Crown Victoria : Check the Vehicle Emission Control Information ( VECI ) decal in the front of your engine compartment . That will indicate what type of Motorcraft spark plug to use and the spark plug gap
motorcraft.com shows a spark plug gap of ( .044 inch ) for the 2.0 L - 4 cylinder and 2.5 L - V6 engines
( .054 inch ) according to motorcraft.com
According to one of Fords websites : The 360 cubic inch / 5.9 liter , V8 engine in a 1975 Ford F-150 has a spark plug gap of : ( .044 inch )
TOYOTA CAMRY LE 1986 SPARK PLUG GAP SETTINGS
The spark plugs on a Ford Explorer are replaced by first disconnecting the battery. Remove the spark plug using a spark plug socket. Replace with the factory recommended spark plug.
the spark plug gap is .054in. for 2003 ford focus.