Best Spark Plugs

[mattpiotr]

I have a 1986 GMC 2500 with the 350(Vin Number M) it has a comp cam .454 lift with 268 duration i have auto lite plugs in there not and dont really seam to have the performance im looking for. what would be the best spark plug for me?

[mud.man.rj]

A lot of spark plugs are personal choice, everyone will have a diff plug, me I usually use an NGK platinum, the reason being they are cheaper than Bosch or AC Delco platinum and with a small tip so the electrode doesn't get in the way of the spark as much, thus a better/cleaner spark and stay cleaner than a large tip plug which is good if running it a bit richer or more cam than stock. My mpg inproves slightly as well.

[mattpiotr]

Originally Posted by mud.man.rj

A lot of spark plugs are personal choice, everyone will have a diff plug, me I usually use an NGK platinum, the reason being they are cheaper than Bosch or AC Delco platinum and with a small tip so the electrode doesn't get in the way of the spark as much, thus a better/cleaner spark and stay cleaner than a large tip plug which is good if running it a bit richer or more cam than stock. My mpg inproves slightly as well.

i would differently go with a platinum plug but im kinda on a tight budget, i've been hearing some good things about the NGK V-Power. im mainly looking for something to improve my MPGs but yet let the truck **** n get every once in a while

[mud.man.rj]

Originally Posted by mattpiotr

i would differently go with a platinum plug but im kinda on a tight budget, i've been hearing some good things about the NGK V-Power. im mainly looking for something to improve my MPGs but yet let the truck **** n get every once in a while

The V power is a standard plug with copper and a v groove, not no noticable performance difference listed real world and has a large tip but with a notch to let a bit more spark threw, the G power/platinum will increase mpg and performance at the same time, so just a choice, me not much for standard anything and not much price difference to step up to the G power.

[WarBeard]

Good ol fashioned AC Delco

[tucsonjwt]

I "buy" Champion platinum plugs when they are on sale for free with manufacturer's rebate. I have 32 plugs in the shed now. I do not race my work truck 454.

[cory d]

i cant remember if i went with ac delco or autolite. i couldnt tell the difference in my truck but i pretty much have to run ngk iridium in my dirtbike or it fouls from a weak ignition system

[manimal]

I have NEVER had any luck with AC's or Champion. The center of a champion(the last time I broke one) was just a small spring like what you'd find in an ink pen! The AC's were like a carbon core. I personally like NGK and Autolite.

[riz]

NGK = Never Goes Kaput.

RIZ

[whiplash889]

the e-3 plugs are good but they are almost 45 bucks a set, i had great improvment in my 454

[gchemist]

I run NGK V plugs on my ZZ4. Same for my 96 4.3 Jimmy. Both run great!!

[bigwheel15]

AC Delco hasnt done me wrong yet.

[Hoods69BadBowTie]

I use to run Ac Delcos they worked pretty good. I switched to ngks and haven't gone back. Seem to work good and without any big issues which is always a good thing.