2006 4.8 Yukon

[boomer1]

Hi all,

Well the TR55 NGK spark plug be ok to install in this motor ??

Thanks All,,

 

[TunasTwins]

yeah the ngk's are preferred on the LSX motors

 

[chip]

I just did plugs and wires, and I also decided to go with NGK. They work great.

Besides, guess who makes the AC Delco plugs????? Yup, NGK. When I pulled the old AC Delco plugs out, They said AC Delco on one side and NGK on the other, so I think it's safe to say they're good!

 

[boomer1]

Thanks guys for all of your input,,it makes things a lot easier..

boomer1