Worst Spark Plug You've Ever Seen?
 

So im pulling apart the car for a forged 383 since I spun a bearing, and after pulling the heads off I noticed the #8 piston looked noticeably worse compared to the others. After taking the spark plugs out of the heads I noticed one just isn't right and found out the owner before me who I bought the car from replaced 1-7 with NGK TR-5's and never replaced 8 so it was running on a stock AC delco for 110k miles:mad: Let me just say pictures do NOT do it enough justice. The plug is completely pointed on the tip and just bad in every way possible.

http://i56.tinypic.com/2lm76dv.jpg
http://i52.tinypic.com/5s77c.jpg
http://i54.tinypic.com/k3prb7.jpg
Sorry about the bad quality of the pics, camera sucks :punch:

even my stockers when i changed them out at 120,000 looked better than that

Nah, that's not the worst I've ever seen. Try having a nitrous backfire...then you will truly know what a bad plug looks like :)

http://i37.photobucket.com/albums/e8...ackfire004.jpg

Blurry pics FTW!

No pics of it, but I changed the stock AC Delco plug out of #8 with about 80,000 miles on the car. If it had an electrode left, I couldn't see it.

wow that nitrous one is horrible :eek2:haha, makes me feel at least a little better about running that plug for a few months

Nah. It's not the worst unless the electrodes are missing. S2000 I did years ago ate two of them. Shortblock was fine, minor scuffing on the valves and no pieces to be found. Bizarre, what the F are the odds of something like that finding it's way out the exhaust valve without damage LOL. Twice!

The precious metal (iridium/platinum) have VERY small electrodes - and are made to go to 100,000k, theoretically, for emissions reasons I guess. They still like to be swapped out before for optimum performance.

http://www.spark-plugs.co.uk/pages/t...park_plugs.htm

i'm looking for a picture of one of mine, but it was when i installed lt's. when i put the driver's side in, i ended up hitting the back one and it split all the way down one side on the ceramic part. took me about a week to figure out why it was idling so rough.

+1 one the difference in electrodes... and shame on the those people that are too lazy to change #8 spark plug.

making me wonder if i need to change my stockers..

Sorry about the clear photo!!

154,000 miles on this plug, Corolla I bought new in 97.

^wow....

You just compared an irridium plug to a copper plug????

http://img.photobucket.com/albums/v5..._6067106_n.jpg

The plugs that were in my car when I got it. New plug on the right.

Two of those look completly fouled!

That made me lol. It's SUPPOSED to look like that.:bomb:

This thread is major fail.

^^what they said man, thats the original iridium/ platinum plug (i forget which they came with) but ya its supposed to be narrow and pointed like that for a better spark the new plugs you got are just regular copper plugs they are still good but in theory getting the original iridiums are better

pretty much sums it up...