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Probably around 35. If you buy from a reputable store, they will come pre gapped almost dead on. Just measure one to confirm. If you run a slightly larger gap it helps in flame propogation. I usually go around 10 over, but keep under 60 at the outside. If you want to get trick, you can index them, but we don't need to go overboard here.
What else can I help you with?
What is plug gap 454 Chevy?
.035"
What is spark plug gap for 1978 Chevy 454?
0.045
What is the plug gap on a 98 Chevy 2500 with 454?
0.35
What are points gap for a Chevy 454?
30 degrees dwell
What is the spark plug gap on a 79 Chevy 454 engine?
25-.30
What are the points gap setting on a 454 Chevy engine?
30 degrees dwell
What is the spark plug gap on 1977 Chevy truck 454?
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.
What is the spark plug gap for 1995 Chevy van with 454 engine?
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.
What is the correct spark plug gap setting for a 1991 Chevy 454 HEI engine?
0.035"
What is the spark plug gap for 1999 Chevy suburban 454 duromax?
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.
What is the spark plug gap for a 1989 Chevy 454?
i think .35 or it will be under hood on sticker emissions
What is the spark plug gap for a 1998 Lumina?
The spark plug gap for a 1998 Chevy Lumina (with 3.1L or 3.8L engine) is .060".
