Hey guys i just bought a 1997 z28 and im getting ready to change the spark plugs for the first time. I have heard from different people that some plugs are better than others. The ones i originally was going to use was the E3 plugs but have recently heard that they are not so great. What plugs do you guys recommend?

 

Use the same plugs that the factory originally put in.
ACDELCO Part # 14 {RAPIDFIRE PLUG; replaces 19145295 #19145295, 19238464, 25332828}
SPARK PLUG .060 GAP

 

what is everybodys opinion on the boch platnum 4 plugs or some crap llike that? the ones that have like 4 prongs for the firing on the end of the plug?

 

^^^ they are working great for me.

 

I'm running the Bosch Platinum Fusion (4 prong) plugs in my LT1, and they've been working great for me.

 

Ive had 4 LT1's lol and the ones that i prefer are the Iridium NGK's there My personla choice ive tried bosch i like them too but i think ngk deliver more punch and better gas milage

 

I'm using accel u groove plugs this was my first tune up and oly driven like 40 miles on them but so far I like them a lot

 

NGK's

but, since putting on the PAcesetter long tubes, plug replacement isn't an issue any longer

 

Thanks for all the input guys. I think im going to go with the NGK iridium plugs. Im going to be installing them this weekend.