Charging TA

Sorry guys search aint working,

What do you guys recommend as the best (reliability, etc...) plugs for a basically stock LT1 ? No juice, no FI. Im not a fan of NGKs but I dont think I can get anything else here, so would the TR55s be the right plug? I prefer Denso in other applications however they usually cost a bit more, is there a good Denso plug for the LT1?

Ive heard to stay away from Bosch Platinums.

Thanks.

trixareforkids28

Just go with some AC Delco platinums. They're the stock plug, but they do just fine. That's what I did when I changed plugs

Charging TA

Dont believe Ill be able to get them from here... (Finland).

MrCadillac

autolite 106? 104 is 1 range cooler. it's a CHEAP copper plug that has one of the best reps in all LT1 aplications. Ac delco's are real good near stock, but damn they cost alot! couple 12 second caprice guys were using NGK's, and had issues, then they both switch to autolite's, issues left... platnuim's only real gain is long life. I would not use champion, or bosch.

MrCadillac

and I'm pretty sure tr55's are correct. or is it tr5's? I think one is copper, one is platnuim... i forget.

buffman

iTrader: (9)

I use autolite 104s. Although im not sure what the stock recommended plug is for an LT1 f-body

Charging TA

Alright Ill have to call around and see if anyone carries Autolite here. Thanks guys.

TransAmMan93

I found out, and all my buddies who work on f-bodies only recomend that NGK TR55's are the way to go for plugs. They produce more spark and last a long time and maintain the right amount of spark.

Charging TA

Alright sounds good, thanks.

harvickgm

iTrader: (10)

is that the actual part number for the autolights... 106's??? cuz im using the NGK TR55's and im not liking them... i have swapped them out several times and some crack and arc.... but the idle quality doesnt feel the same... i have all new ignition components..

MrCadillac

yes, 106 is the stock heat range #. 104 is one range cooler. there is no 105. these are copper plugs. you are not the furst to have issues with NGK's.