I have a stock lt1 and need to Change my spark plugs. I was thinking either e3, ngk, or pulstar. I need opinions.

 

ngk or autolite..........the e3's and pulstars are a joke......and a complete waste of $$$

 

^^^^^This and nothing else except Delcos for a stock motor.

 

i have e3 plugs in mine and there is a nice difference in power and gas milage. if you are going the e3 route (!!!DO NOT GAP!!!) THEY ARE PRE SET FROM THE FACTORY ANY TAMPERING WITH IT WLL MESS THE PLUG UP AND IT WILL BE sH@% AND NOT WORTH THE EXTRA MONEY you spent but go on the website and read all the info for your self. they also come with a 5yr 100,000 mile warranty i think. so good luck

 

I would agree with reading info, but not off their website. Do a google search and look at all the forum discussions, or just search in the LT1/LT4 section of this site.

No such thing as magic spark plugs, just magic marketing. I can't believe some of the TV shows that are endorsing the E3's.

 

ngk tr5 buy just the regular V power $2.15 plug........gap it to .045......install it........and go buy a 6 pack with the money you saved


E3's are worth about as much as the box they come in.....

 

ngks platnium plugs are good to check your gaping if going that way. i used them on my last z28. I agree with the other post do your research from indepentant places and tv indorcement are not worth anything thats y i did my own info look up before deciding.

good luck

 

OP dont run the platniums..........another joke lol..............at 10 dollars a plug its a waste espically on a stock motor.........i run a simple autolite copper plug in my 700hp NA motor........and it runs great........trust me i've tried them all from $2 plugs to $15 plugs....

 

everyone says ngk tr55s but i ran those and delco platinums and think the delcos where a little better but who knows antifreee got on both sets. but id say go with the ngks cuz they are much cheaper