Spark Plugs........

[JohnBoy_93Transam]

i got a 93 trans am LT1 and i was wondering how much and what kind should i get. i got some before ($4.50 for 2) and a mechanic around where i live said that they wouldn't work, that the ignition is too hot for regualar plugs, that it would burn them up. he said that the plugs that i needed were like $8 a piece! is this true?? i don't think the plugs have been changed in awhile, so how much will it help the car performace wise??? thanks in advanced!

[97Bandit]

Well first off what kind of ignition do you have? cause if its stock or has like a bolt on say "msd" coil or something i would just go with stock ac delco plugs. Just what was meant to be in the car originally. When i got my car they hadnt been changed in like a long long time and when i replaced them i went from losing to a new chevy pickup to no contest in a race like it should have been. yeah thats how bad the plugs were.

[Trash man]

a/c delco, or NGK never have any luck with bosch and autolite is hit and miss

[ConElite]

I have Platinum 2's and My cars running good. Does not misfire or anything.

[JohnBoy_93Transam]

its the stock ignition. no upgrades, i don't think anyway. the previous owner did some tuning to the car. he actually screwed up the ABS. when i hit the brake really hard the tires lock up, on dirt or gravl that is. the ones i bought before where autolight. but he told me not to use them. so ac delco or NGK. do they have to be platum? i dind't know that plugs made that much differance. i'm running a 15.6 ET (that was before a cold air and a cheap chip) how bout wires????? should they be replaced? thanks,

[Trash man]

i usually do plugs and wires. my moms truck (01 sport) had regular spark plugs. i put in iriduims(sp?) they are suppose to last over 100K. i only did this becuase it was my moms truck so i wanted something good, but i have to remove the wheel well housing to get to them. but if they arent platium plan on replacing them every 30K-60K

[Craig 94 TA GT]

I'm using NGK Iridiums because they last very long - and it's a PITA to replace the plugs with manifolds and some headers. Also using Taylor 8mm Spiro Pro wires. You can use up to 8 mm (maybe 8.5 if you're lucky) to get them to route/fit properly on the stock looms.

[strkt_&_blwn]

You can use up to 8 mm (maybe 8.5 if you're lucky) to get them to route/fit properly on the stock looms.

I have 8.5 MSD's they fit with the stock harness. kind of a tight fit though.
I'm running NGK TR6's PN4116 I do believe but that's a colder than stock plug for my boost so I would probably just run good 'ol AC Delco's if I were you.

[Injuneer]

I had problems with the stock AC/Delco plugs losing the little platinum pucks off the tips of the electrode. I've seen other people report the same problem. I'd switch to an NGK TR5 or TR55. If you go with the more expensive Iridium plugs, they will last longer. If you use conventional plug, you might have to change them in 20K miles.

The TR6 is one step colder than stock, and only useful on an engine running a power adder (nitrous, blower, turbo) or making over 400HP. There's also an Autolite 104 that is about 1/2-step colder than stock. I've had good luck with both the NGK TR6 and Autolite 104 non-platinum plugs when I was only running nitrous on the stock engine. I use the Autolite 103 now for anything up to 125-shot on the stroker.

There's nothing "hot" about the stock ignition.