spark plug gap

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07-04-2008, 05:30 PM
06-crewhauler

spark plug gap

i bought some ngk tr55ix for the truck what should i gap them at
07-04-2008, 06:22 PM
TxStVanWilder

i run my tr6's at .35
07-04-2008, 07:02 PM
ff_jeff

Quote:

Originally Posted by TxStVanWilder

i run my tr6's at .35

+1
07-06-2008, 03:41 PM
ducky

same here
07-06-2008, 04:24 PM
ChevyLee

im gunna re gap mine i think, i put them to 40.. its been so long i cant remember lol, but my next set will be the a/c delco that are rated at 100,000 miles. they are suppose to be the best for these lsx motors..
07-07-2008, 12:00 AM
NITROUS

Those are iridium plugs so they come pre gapped just like the platinums do. You're really not supposed to touch them. TR6's are copper and made to be gapped. If you gap the iridiums be sure not to crack the tip at the insulator, I'm sure the ground strap will be fine though.
07-07-2008, 12:25 AM
ChevyLee

Quote:

Originally Posted by NITROUS

Those are iridium plugs so they come pre gapped just like the platinums do. You're really not supposed to touch them. TR6's are copper and made to be gapped. If you gap the iridiums be sure not to crack the tip at the insulator, I'm sure the ground strap will be fine though.

i didnt gap the irdium ones.. for some reason the non iridiums were giving me miss fire codes in the 5.3 flex fuel motor.. so i tossed those bad boys in an all was well
07-07-2008, 01:28 AM
TXsilverado

i gap my tr55's to .060. im all motor though.
07-08-2008, 08:00 PM
06-crewhauler

ngk website said to gap them at 44 so i will try that they come gapped at 57 i am putting them in tonight let yall how they do
07-09-2008, 11:49 AM
TXsilverado

doesnt the manual say .060 on these trucks?
07-09-2008, 12:51 PM
thunder550

What I've heard is N/A, run TR55's and gap them at .060. FI, run TR6's and gap them at .035.
07-09-2008, 01:04 PM
shakesvho

^^^ right on the money if you are running tr6 .35, I just put a fresh set in my truck friday night, I gap'em at .25, (note: don't work on the truck when drunk) we were working on putting a new set of mirrors on(06 SS mirrors)and after a case or two of coor lite well, I found my gauge the next morning gap at .25
07-09-2008, 02:06 PM
txarkitekt

Doh!
07-14-2008, 05:40 PM
ChevyBeast05'

Sry for the noob Q but im puttin my Pacesetters on soon and someone told me i Need gap my spark plugs I have thr tr6's how do u gap????? and should i us tr6's with all motor???
07-14-2008, 10:34 PM
txarkitekt

Quote:

Originally Posted by ChevyBeast05'

Sry for the noob Q but im puttin my Pacesetters on soon and someone told me i Need gap my spark plugs I have thr tr6's how do u gap????? and should i us tr6's with all motor???

TR6's should be gapped around .035-.038 for N/A applications. You can get a plug gap tool for 99 cents at Autozone/O'Reilly's out of one of the buckets at the front counter. Just insert the gap tool inbetween the electrode and the outside "J" looking ground electrode and turn it until you get the desired gap.
07-14-2008, 10:35 PM
TXsilverado

Quote:

Originally Posted by ChevyBeast05'

Sry for the noob Q but im puttin my Pacesetters on soon and someone told me i Need gap my spark plugs I have thr tr6's how do u gap????? and should i us tr6's with all motor???

all motor use tr55 gapped at .060 with OEM plug wires IMO.
07-14-2008, 10:55 PM
ChevyLee

Quote:

Originally Posted by TXsilverado

doesnt the manual say .060 on these trucks?

yes the book calls for .60, thats why i was like why the HECK am i gapping it to .40.. ..... talked to a mechanic, he laughed at me for using them, he said get some A/C delco's back in there. im gunna try some, see how i like them.