bat1

I guess I should change them I bought the car used. Don't know when
they where changed last..Car has 90k

So, What tools will I will need to do this? and do I need a lift and change
them with the car in the air?

what's the best way to get to that # 8 spark plug?
I can't even see it..lol

which plugs do you recommend?
stock engine here..2000 Z28

Thanks for your helpl

sopes

Im about to replace mine in the fall, I dont know about the tools, shouldnt need a lift and Ive been told NGK Iridiums

02 NHRA

http://installuniversity.com/ls1/ins...plug-swap.html

I used this write up the first time I did mine. Its not to difficult, but your hands might look like you stuck them in a blender lol

squirlNUTZ

You will need a spark plug socket, two extension and a ratchet. 10mm socket I think to remove coil pack from passenger side. ( the first time I didn't remove anything) and some " geterdone". After your first time it gets easier and better.
I bought a tool kit from autozone. I can take my entire car apart with it other than a crescent wrench and small hammer

Black01Bird

Take coil pack off, or atleast up and out of the way, remove the air tube, and theyre pretty simple to change out, i got #8 from the bottom and it was easy. As for the drivers side, theyre very simple and nothing needs to be removed.

BlackBetty99SS

iTrader: (1)

I removed the AIR tube, coil bracket, and used a spark plug socket w the swivel end for the entire pass side. The driver side-removed the AIR tube once again, spark plug socket w swivel, followed by various extensions. Most of it is dependent on on the size of your hands. Just set aside enough time incase you run into any issues.

1BAD98LS1

iTrader: (33)

NGK TR55's

lemons12

iTrader: (71)

NGK tr55s
spark plug socket
10mm socket
1/4 and 3/8 drive ratchet
1 short 1 long extension and one swivel
I'd recommend some rags and cleaner to clean the wires off as well as some anti seize and dielectric.

Take all but the VERY back bolt out on the passenger side and move the bracket up and out of the way.
Take the EGR tube off the manifold (2 10mm) and move that out of the way

Sitting on your knees on the battery makes it much easier to reach the back two plugs.

On the drive side take unhook the sensor behind the PS above spark plug #1.. No reason to remove the EGR stuff coming from the manifold on this side or the coil packs.

Driver side shouldn't take 20 minutes TOPS. Passenger side takes about 45 mins-1 hour.

Make sure to get a good grip so you don't mess the wires up.

LoneGunman

iTrader: (2)

Also, as much as a PITA they are to get off, make sure you re use the heat shields over the boots.

lemons12

iTrader: (71)

I don't use them..

sopes

I figured Id tie in the AIR and EGR delete when I do my plugs lol