spark plugs

[tyota]

whats the best spark plug in everyone's opinion?
it's not a jeep, '01 4.3
I figure I could just call auto zone and ask for a spark plug but I figured theirs gotta be a brand out their thats better than others.
so I might as well ask for some opinions

[fatbob]

AC delco's are preferred on some of the GM sites I've lurked on, at least for the old 350. Bosch seemed to be the worst .

[DREDnot]

I swear by AC delco in GM engines(former chevy tech)
Nippon Denso or NGK in Jap
Champions in Jeep
Champs suck in GM but I found out the hard way they are THE jeep plug

[jeepin_in_az]

Champions for Dodge also.

[wannabejeeper]

I swear by AC delco in GM engines(former chevy tech)
Nippon Denso or NGK in Jap
Champions in Jeep
Champs suck in GM but I found out the hard way they are THE jeep plug

What he said (I was also a GM driveability tech).
NGK's also work real good in SBC nitrous motors, they were the only plug we found that wouldn't get fried after one weekend in the dunes.

[tyota]

thanks for all the help guys, from lurking other sites, it seems that ac-delco is the way to go

[jason]

id check into champs as awell. i run the piss outta my sh!t and they seem to hold up better than when i ran ac's in my crapper.


either way, if plugs make that much difference than im doin something wrong:D

[AZJeeps TJ&XJ]

I have been running the AC-Delco Rapid fires in the XJ, and it seems to like them . But with the TJ I swapped in some NGKs and it does good with them (yes NGK is one of the plugs listed on the label under the hood). I am not a big fan of Bosch anymore, Champions are getting better. Never Autolite or splitfire. But I carry 2-3 extras of the cheapies in the tool boxes.

[ThumpAZ]

I cannot disagree one bit with the above statements.
Delco in GM

I learned the Champion (NEVER USE PLATINUM in older Jeep vehicles) wisdom from the first person (of very few) I ever had work on my Jeep... Clifford Performance. The guy there had been a Jeep tech or whatever before he "retired" and taught me quite a bit about my rig while it was in his care.

I have been running the AC-Delco Rapid fires in the XJ, and it seems to like them . But with the TJ I swapped in some NGKs and it does good with them (yes NGK is one of the plugs listed on the label under the hood). I am not a big fan of Bosch anymore, Champions are getting better. Never Autolite or splitfire. But I carry 2-3 extras of the cheapies in the tool boxes.

NGK works well in late model Jeeps, thanks to them being mostly DC/Mercedes designs anymore. Very few of the original Jeep/Chrysler engineering parameters still exist in these rigs.
Even the new Hemi's supposedly work very well with NGK

[LOWTECH]

AC delco's are preferred on some of the GM sites I've lurked on, at least for the old 350. Bosch seemed to be the worst .

Yea your right about Bosch I only got 3 years out of mine - what crap

[mysunnshine]

I'd also say AC Delco...