hi my friend has a 97 LT1 and the engine is totally stock and he wants to fit spark plugs that lasts longer....well he found these splitfire tripple head spark plugs with this part number or heat range which i am not sure about "Tp10e6" which use a tripple head and say that are platinum and last for 167k miles.....should he buy them or you addvice for something else?

 

AC Delco 41-906 Guaranteed for 100,000 miles and used in new cars.

 

any others? cause i have to check if the AC delco shops here sell these type of plugs....i am looking for plugs that are found easily in the market and still maintain an affordable price range!

 

You should be able to get them at most any auto parts store.

 

I have had the splitfire tripple plats in my car for over a year now. Luv em. I swear the engine revs faster with the splitfires. Gapped them to 0.05.