Hey guys; First post here, I'm excited to be surrounded by other Chevrolet Enthusiasts.

Anyway, to the point; I drive a 1998 K2500 Silverado with the 7.4L L29 Vortec, 152k miles.

I've heard that some vehicles respond better to OEM spark plugs, and I was wondering what you guys personally recommend for spark plugs for my truck.

I'm considering the Denso Platinum TT, or E3 Spark Plugs, but I'm not very knowledgeable in the Spark plug department. I'm willing to take any recommendations as well, these aren't my only two options.

Also, would anyone know the spark plug gap for my motor?

Thanks in advance, guys!

 

Welcome to the Forum!

I use the AC DELCO iridiums, But thats just my personal choice.

 

Some people swear by HALOS, and I believe they actually make them for your engine. I wish they made them for mine.

In any event know this :

It's been my sad experience that whatever the manufacturer claims for their plugs life, cut it in half. Therefore, for instance, if a manufacturer says "These plugs will operate trouble-free for 100K miles!" you better get busy at 50K and change them.

 

i use to use bosch JUNK!!! Use ACdelcos

 

ok so i wus wondering aswell about that i have a '07 silverado and wanna know wut spark plugs throw a better spark : NGK's or AC DELCO.. and also for oil do u guys think i should use royal purple??

 

I use Royal Purple.

 

I've been impressed with the valvoline synpower that I have right now. Royal purple will most likely be my next oil. I use NGK iridium plugs.

 

I'm going to try AMSOIL.

Oh yeah, I'm going to tell you guys ALL about it.

 

Put Ac delco plugs in. All those fancy ( E3, Split fire, dual tip, 4 tip etc...) are a waste of money

 

I agree with MDTAHOE! Use Acdelcos!

Rivereye lets not start another Amsoil discussion! LOL