99M6Z28

iTrader: (8)

I just ordered my pacesetters and I figure I wil change the spark plugs while I am at it. I bought some NGK TR55's a while back. What is the gap setting on the LS1?

Lithium

iTrader: (47)

.055 is the usual

nokeman

iTrader: (30)

they pregap thier plugs to .055 right out of the box so most of the time they are ready to put on.

99M6Z28

iTrader: (8)

Are the TR55's a good plug or do I need some kind of platinum plug?

jmm98LS1

iTrader: (28)

Most of the people on this board that are naturally aspirated run TR55's, including myself. If you plan on running nitrous, go a step colder to TR6's.

nokeman

iTrader: (30)

the tr55 are great unless using FI or nitrous, as jmm said.

Redneck Z

iTrader: (3)

I've heard some say that they've noticed better throttle response gapping at .50. I usually go inbetween at .52. Always check the gaps on all your plugs though, because they can vary. In fact I've never had a consistent batch. They've always varied from .50 to .60.