.60
The spark plug gap for a GM vortec V6 is .060
.60
.065
.45
0.06
Consult the underhood sticker.
.042 to .043 should be good for gap!
.060 in inches.
Consult the underhood sticker. By the way, the last Astro was in the 2005 model year.
.045 spark plug gap
The spark gap is .045 (forty-five thousandths), I checked with both Auto Zone and Napa Auto Parts to be sure.