BlueDiamond

Hey,

I have a LS2 engine wih the following mods:

Cam: CompCam XER281HR with the recomended products (timing set, lifter kit, rocker arms, push rods, valve springs, retainers, etc ...

FAST 92mm intake
FAST 92 bigmouth throtte body ( cable driven )
FAST XFI Crate Engine Management Kit, LS2
FAST Transmission Controller & harness for the 4L60E
MSD Coils
Ported Heads

What spark plugs wuld you use with this ?

Thanks
Fabian

LS6427

iTrader: (2)

NGK TR55 or TR5 (they're identical plugs)
or
AC Delco

.055 gap

Thats what I've been using on my LPE 427ci for a long time, they're perfect. I use NGK.

NICE LOOKING ENGINE MAN!!!!

demarco313

yep ngk tr55.. damn that engine looks good

BlueDiamond

Thanks for the replies ...

I found the NGK at summits store .. but it says it is only for 2005/2006 LS engines.. mine is a 2007 Corvette engine .. will these fit also ?

Any other brand you can recomend or just the NGK ?

http://store.summitracing.com/partde...3+&appfilter=1

BlueDiamond

anyone ?

405HP_Z06

iTrader: (11)

Assuming your running 243 or 799 heads the NGK TR5 is the correct original heat range plug for your engine. If the engine is lightly modified, this heat range is fine. Personally, I prefer Iridium plugs so I would use either a Denso IT16 or NGK TR55IX.

BlueDiamond

how do you define slightly ? the cam is a race cam and agressive and the heads are also fully portet ... should make nice HP.

405HP_Z06

iTrader: (11)

What is the compression ratio? Will the car be driven frequently and in racing events? Are or will you be running nitrous?

BlueDiamond

it is the stock compression ( stock piston ) ... the car will be driven on street mainly, will not get nitrous.

LS1-450

iTrader: (33)

May want to send a PM to 99BlancoSS (sponsor). He's got a new low resistance Iridium plug that may be of interest to you.

405HP_Z06

iTrader: (11)

I would run either the NGK TR55IX or Denso IT16 for this application. I'm running 11.31 SCR, Dart 225's, Crane 222/228 cam, FAST 90, Dynatech longtubes, and Crane rockers with NGK 6 heat range plugs (BKR6EIX-11, DO NOT use this part number for your heads, they are a gasket seat for Dart heads).