2009 corvette LS3 430hp stock
Thread Starter
4th Gear
Joined: Feb 2015
Posts: 4
Likes: 0
From: San Antonio Texas
2009 corvette LS3 430hp stock
hi, I'm looking at installing AC Delco sparkplugs. what should i install for plugs 41-110 0.40 gap or 41-962 0.60 or 41-985 0.40 gap I'm Cunfused!!
I installed 41-962 0.60 GAP plugs are these the correct plugs?? OR do i install the 0.40 GAP plugs??
I installed 41-962 0.60 GAP plugs are these the correct plugs?? OR do i install the 0.40 GAP plugs??
Race Director
Joined: Apr 2017
Posts: 10,247
Likes: 888
From: Hickory NC
2025 C5 of the Year Finalist - Modified
2022 C5 of the Year Finalist - Modified
2020 C5 of the Year Finalist - Modified
St. Jude Donor '17 thru '26
Hi Gary: I would suggest asking this in C6 Tech or reach out to a moderator and ask them to move this.
You will get much better results there.
You will get much better results there.
Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,104
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
I used 41-110 plugs from day 1 (OEM) through 161K miles. If you run too lean at WOT, you might lose an iridium tip or two, but it won't happen on a stock tune.
