Autolite 23's

[Buster]

I tried these plugs out a couple years ago, and after trying the others I've came to the conclusion that these resist knock the best in my truck.

I recently tried the NGK UR5's, UR6's and the UR6ix, and I seem to pick up a lot more knock. Just thought I'd throw this up, because they work so well and are very inexpensive.

 

[Tooky]

Thanks Mark, I am going to give them a try. Are these for normal heads or Vortecs? Any tricks to gapping or anything else we should know, or do I just pull my NGK UR5 @ .032" and swap in these Autolites exactly the same way?

PS: Got any good national chain sources for Autolite?

 

[Buster]

I bought 'em at pep boys, and they are for the stock heads. I usually run the gap at .030.

 

[sy1907]

I can second that. Mark told me to use them and they perform great, when the truck runs like it should in the first place. FWIW