Chevy Silverado Spark Plug Gap (1999 – 2018)

Here is a list of spark plug gaps for a Chevy Silverado. Reference the model year in the table with the corresponding engine to see what is the spark plug gap for your car.


Chevy Silverado
YearEngineSpark Plug Gap
1999 - 2006Vortec 4300 (4.3 L) V60.060 inches
Vortec 4800 (4.8 L) V80.040 inches
Vortec 5300 (5.3 L) V80.040 inches
Vortec 6000 (6.0 L) V80.040 inches
Vortec 8100 (8.1 L)0.060 inches
2007 - 20144.3L LU30.060 inches
4.8L LY20.040 inches
5.3L LH60.040 inches
6.0L LQ90.040 inches
Vortec 6200(6.2L V8)0.040 inches
2014 - 2018LV3 EcoTec3 4.3 L V60.037 - 0.043 inches
L83 EcoTec3 5.3 L V80.037 - 0.043 inches
L86 EcoTec3 6.2 L V80.037 - 0.043 inches
LY6 Vortec 6000 6.0 L V80.037 - 0.043 inches