I want to changed the plugs...I have 22,000 on my rapid fires....

first question... should I?.... how many miles are you suppose to get out of these? 25,000?

second question....what are you guys using/recommend...and what kind of mileage/performace are you getting/or do you expect to get out of your choice...

thanks
Jeff
just trying to get as much information before making my choice..

:cool:

 

I always had good luck with the Rapidfires in my old car. If everything is running properly it's not uncommon to get 30k + miles from the plugs. What you need to do is just pull one and see if it worn badly. If everything still looks fine you should be fine with simply regapping the current plugs. However, since you would have to pull every plug out to do this, you might as well replace them in the process. I have been impressed with NGK plugs, the TR55 is perfect for the LT1. They look very nice and you can tell they are well made. I've heard some people around here say they have problems with them, but I've never personally seen it. Everybody I know locally runs these plugs and has no trouble at all. You can usually get the whole set for less than $16.

Autolite actually makes a very good plug. For the LT1, it's an Autolite #606, very cost effective good quality plug. You can't go wrong with plain old AC Delco plugs (non platinum) and the rapidfires seem to do a good job as well. Some people claim a "cut back" stock plug is your best bet. Personally I'll keep the longer plug life rather than cut them back just because it's a PITA to change them.

The only recurring theme in spark plugs seems to be to stay away from the junk gimmick plugs. Splitfire, Bosh +4's etc.

Good luck :cheers:

 

I'm using Rapidfire #5 in my L98 gapped to 0.035". So far so good.

 

I use AC Delco FR3LS, only $1 each and I change them once a year.

Vic

 

I am happy with the bosch platinum w/ cut back electrode.
Splitfires did NOT work for me as the sales pitch said they would.
I let plugs go 50K miles.

 

Paul, what do you use to cut the ground strap? I don't believe you actually cut the electrode, do you?

Jake

 

When emissions inspection time rolls around? :yesnod: