0.35
.035"
0.045
25-.30
.35
0.040
A 1995 Chevy Van with a 454 engine will have a spark plug gap of .060 inches. A difference of .005 (give or take) should not affect the engine's starting capabilities, however.
The spark plug gap on 1977 Chevy truck 454 should be set at .045 inches. Spark plugs are preset at the factory and should need no adjustments prior to being installed.
Depending on the type of plug, the gap for a 1990 Chevy 2500 pickup is between .045 and .060. The plugs should come pre gapped.
0.035"
A person must leave the right size gap for the spark plugs when changing them. The 1999 Chevy Suburban has a spark plug gap of .060 inches.
i think .35 or it will be under hood on sticker emissions
.035 in a 1989 k 2500 truck.