.054 inch , according to fordparts.com
.044 inch ( according to motorcraft.com )
spark plug gap is 0.044
Set the gap at .035 in. for a 115 Mercury.
what year cutlass? and what engine?
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.050 - .052
On my ( 1991 ) Ford Mustang 5.0 liter the spark plug gap was ( .054 inch ) What year of Ford Mustang ?
( .044 inch ) for the 2.3 liter four cylinder engine in a 1989 Ford Mustang ( according to one of the Ford websites )
According to the sticker under the hood of my 2003 Lancer ES (non-turbo), the gap is 0.039 - 0.043
.044 inch , according to my Chilton book and ford parts . com
Oem stock gap is. 045 however if your 09 mustang surcharged you will need a colder plug gap of. 30
.044 inch ( according to motorcraft.com , one of Fords websites )