I ran those in my 2006 and never had a problem with them, although I was spraying it. They don't foul and didn't lose any power switching to them(based on track times).
I've also ran them in MANY fbodies without issues. The ONLY thing you need to do is make sure the tips of them are screwed in tight before you put them in, other than they it's a really good plug for very cheap.
I just saw a dyno pull on the power block sunday and they put the E3 plugs in and got around 5-7 hp i think. I caught the tail end so i could be a little off.
I emailed E3 as to which of their plugs work on the TBSS:
(doesn't mean I am buying them)...
"Thank you for your interest in E3 Spark Plugs. The next colder plug to
the E3.44 with the same dimensions is an E3.54."
Sincerely,
E3 Spark Plugs
-----Original Message-----
From: info@e3sparkplugs.com
Sent: Wednesday, July 02, 2008 1:18 PM
What is the equivalent of an NGK TR6 in an E3
sparkplug? I'm looking for one step colder than a TR55 or one small
step colder than your equivalent for a:
TRAILBLAZER SS 2007 V8-6.0L
(364) H ... E3.44
Regards.
In California...you need to run the TR6 or other equivalent plug which is one heat range colder than stock (same as LS7) and a 160 stat if you want to be able to take advantage of tuning changes on 91 octane. Trust me on this...I've tried it with stock plugs and stock stat and while it work okay i winter it doesn't work worth a damn in summer (major KR)
I just changed mine to the TR6's ever seems great, actually it seems to be more responsive and after my tune from Vector it now snaps my neck back if I hit it just under 30 mph. When I took the stockers out, they were very white still, with a touch of pink, I gapped them to .040. Truck runs fantastic, but remember to put all the wires back on, I left one off on accident, but it was very obvious after starting it. Ran very rough and the Check Engine line kept flashing. I am running the Thundervolt Wires with mine. Seems to not loose as much power once the Heat soak sets in.
you know how to lower, do group buys, do nice exhaust setups, fill rear bumper, answer your cell at 3am about how to install kbees, but u don't know what spark plugs to use???? wtf????? u need to quit spying on chicks in baffrooms as your brain has went down the tubes like my tubesteak in your serbian crackhole, lol.
what do you guys think about bosch iridium fusion spark plugs i was thinking about putting a set in my 06 6.0 trailblaxer put a set in my 100,000 2001 gmc pick up ran smother idle better and seem to have a little more go in it