gap is 0.035"
.035 inch
On my ( 1991 ) Ford Mustang 5.0 liter the spark plug gap was ( .054 inch ) What year of Ford Mustang ?
According to one of Fords websites : For a 1968 Ford Mustang 5.0 liter / 302 cubic inch V8 engine : ( the spark plugs are gapped at .035 inch )
The ( 1968 ) Ford Mustang 200 cubic inch straight 6 cylinder spark plug gap is ( .035 inch ) I'm assuming the 1967 was the same ?
The 1966 Ford Mustang 200 cubic inch straight six spark plug gap is .032 to .036 inch
.054
The spark plug gap for a 1988 Ford Mustang is: .044" for the 2.3L 4-cylinder engine .054" for the 5.0L V8 engine
A 1968 Ford Galaxie 500 with a 390 engine should use a spark plug such as an E3 brand spark plug. This plug should have a tapered seat with 18mm threads.
.054
According to motorcraft . com the spark plug gap for a 1993 Ford Mustang 5.0 L - V8 is : ( .054 inch )
( .050 inch ) - spark plug gap for 1986 Ford Mustang - 5.0 liter engine
.044 inch spark plug gap for the 2.3 L - 4 cylinder engine in a 1993 Ford Mustang