General Maintenance & Repairs - spark plugs

do you gap acdelco plugs to .040 or .060

did you buy pre gapped plugs?

a few guys on here put theirs at .55 if they have boltons. stock is .60 for the LS1. i would go .60 to be on the safe side.

yeah pre gapped at .040

Are these the Delco Iridiums? If so, the gap on those is supposed to be .040, even for a stock motor. They are not the same as the stock platinums that came out of your motor.

thanks

Just learned something. I have Delco Iridiums and regapped them @.060. Luckily I haven't installed them yet. Why is the gap .040 instead of.060 for the Iridiums?

Just learned something. I have Delco Iridiums and regapped them @.060. Luckily I haven't installed them yet. Why is the gap .040 instead of.060 for the Iridiums?
Here ya go:

http://www.ls1tech.com/forums/showthread.php?t=442984&highlight=plug

I thank you for the speedy reply to my interrogative. I will regap before installation.