The 1976 351 Ford engine spark plug gap is .034. Most spark plugs will come pre-gapped from the spark plug manufacturer.
0.044
.044 inch
.044 inch
ford 351 windsor
.044 inch
.044 inch for 351 M and 351 W
.044 inch
www . motorcraft . com ( no spaces ) shows : The spark plug gap for a 1994 F-150 - 351 V8 ( 5.8 L ) as .044 inch
.044 inch
Ford truck 351 windsor fuel injected
need to know the spark plug gap for a 1979 Mercury Grand Marquis with 351 modified.