Thread: spark plugs

So I was wondering if autolite had different 104's or if they r all the same and if so which ones would be best. . . . .sorry if what I said doesn't make sense I couldn quite find the right wording

104 is the temp of the plug.

104s are 2 stages colder than stock
605s are 1 stage colder than stock
606 are equal to stock

You should be good running 104s with your mods.

Well imeant how they have copper core, platinum, double platinum, xp, ext.

As far as I know the 104s only come in the standard and XP. Go for the standard. Here's ZZPs description if it helps:

Mixture of nickel and copper-glass seal that bonds the insulator, terminal post and center electrode together, assuring full voltage
Chromium-nickel alloy ground electrode resists gap erosion
Copper-core center electrode sheathed in high chromium-nickel alloy for superior heat dissipation and durability
Longer insulator nose provides a longer path to control fouling deposits
The autolite 103 plugs are the ZZP team's preferred plug. They need to be changed out more often then the NGKs but performance and KR reduction is excellent. The racing version of the 103's has a back cut electrode and they feature nickle plating.

I stick to copper plugs, they're a very good conductor and they're very inexpensive compared to other plugs that may not perform as well imo.

Alright thanks guys

Wait one more, what r 103's?

103s are race plugs, don't get those.

Unless your race.

i think 104s are too cold for you. you dont have anything done but headers. colder plugs come with more boost ONLY.

Got a 3.4 pulley just gotta get it on