Depending on the plug, it is .050" for most plugs, except for the Denso premium plugs come pregaped at .035"
Sparkplugs.com
.060
0.060
You do not, this is controlled by the ECM through advance and retard of spark plug spark.
Not really. If you remove the center cover on the top of the engine you'll see that there are spark plug "boots" that fit down on the spark plugs.
Spark plug knock on a 1998 Chevrolet pickup is an indicator that the ignition timing is correct. By adjusting the timing, the knock can be eliminated.
The 1998 Chevrolet Silverado V-8 engine spark plug gap is .031. Most spark plugs come pre-gapped from the spark plug manufacturer.
.060
quad 4? on top of the engine remove 4, 13mm bolts of the coil pack and pull up.the spark plug should be visible
.050
1-3-4-2
1993 Chevy cavalier 2.2l Spark gap is....................... 1.4mm
the sticker under the hood says .038 autozone says .042