2017-19 3.6 Spark Plug Gap

[stryker6040]

Well had the common thermostat fail on the 3.6 so the intake manifold needs to come off so while that is off might as well replace the spark plus since the rears need the intake to come off to get too. Rock auto says the gap on the oem ac delco plugs is .035 and do not regap, just want to confirm that is the case? they were out of stock so I picked up some NGK Iridium's which had good reviews for this motor. All six that came were pregapped to .035. Thoughts?

 

[ulycyc]

Delco are .035 and NGK are .036. You will need a really good gap tool to feel the difference. Dont worry about either is fine.