Spark Plugs
Thread Starter
Cruising
Joined: Jan 2023
Posts: 14
Likes: 0
Spark Plugs
I have a 2003 50th anniversary Vette.It has headers, intake, exhaust and a tune.l'm having a pretty hard time deciding what spark plugs I should get.Either Ngk Tr6 or Ngk TR55.1 hear that both of them are good, and both of them have issues. Which ones should I get?
Zen Vet Master Level VII
Joined: Mar 2016
Posts: 5,218
Likes: 1,174
From: Southlake, TX
Get the cheaper set so with your savings you can buy beer to drink during your installation.
Drifting
Joined: Sep 2017
Posts: 1,964
Likes: 696
From: Avon Lake OH
It all depends on the power level you are at. Once you cross the +100 crank HP over stock, its advisable to switch to the #6 or one (1) range colder than stock spark plugs. I run the NGK TR6ix / #3689
