fuseone

do ngk gpower platinum plugs have to be gapped for a ls1. it just hads lt headers and a lid. and if so what do they have to be gapped to?

skifast87

gap every thing. Even if they say they are "pre gaped" Its all bull ****. get a feeler gauge and gap those things. Let me look for the right distance. Some one else might beat me to it though.

fuseone

ok
because the parts place says there supose to be gaped to .044 but the company that makes them say they come gapped at .059

JakeY2KZ

iTrader: (9)

They all won't be gapped at .059. You need to regap them regardless. With your mods .055 would be sufficient enough.

Btw...never listen to anything the parts store people say to you. They are all morons.

taintedmeat

iTrader: (1)

all around

Always check them even if they're pregrapped. You don't know how many times the case or the individual box the plug was in got dropped, or how far off the tooling might have been at the factory. It only takes a second and could save you the time of troubleshooting a misfire problem later.

fuseone

so gap them at .055?

taintedmeat

iTrader: (1)

Yes

fuseone

but just so you know they are the ngk-gp ones.

fuseone

if that makes a difference

qwkta98

always check the gap.