LT1-LT4 Modifications 1993-97 Gen II Small Block V8

SplitFires . . . ?

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Old Feb 10, 2008 | 01:45 PM
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Default SplitFires . . . ?

Alright, so I've been wanting to do plugs in my car for awhile, and I decided a few months back to pull one and see how it looked and what was in it. Much to my dismay, it was a SplitFire (don't remember P#). HOWEVER they looked great, and didn't seem to be running bad. They weren't white (lean), but they were the light tan-ish. Then again, I only pulled one, so who knows. I also get some Pre-Ig in the upper Rs sometimes, but not all the time. I think the atmosphere at the time plays some role in that. Sig is correct, save for the fact the 58mm isn't installed yet (still heh).

Anyways, I guess the point of this thread is: Since they seem to be running alright, should I just leave them, or go with the TR55s? I worked in a parts store for 2.5yrs and I remember everyone saying how bad SF plugs were, as well as how the Bosch +2 and +4s were essentially a joke.

Bash away, since I didn't install these plugs (clearly) heh.
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Old Feb 10, 2008 | 04:24 PM
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I've had SF and Bosch plugs in my LT1, didn't like either....I now have NGK TR55s.
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Old Feb 11, 2008 | 05:11 AM
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Guess I'm just curious if there's any potential by going with a different plug, almost regardless of brand (other than something like KMart specials heh).
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Old Feb 11, 2008 | 05:47 AM
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ive heard of people having problems with the bosch plugs. i dont have any first hand experience with them, but if your car runs and you dont notice any hesitation, id let em alone. next time, switch to the tr-55's
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Old Feb 11, 2008 | 06:05 AM
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There's nothing wrong with stock, AC-Delco replacements. That's what I use on my '97Z, '99T/A and they work great. Get those split fires outta' there...
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Old Feb 11, 2008 | 06:16 PM
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Originally Posted by Schweet97Z
ive heard of people having problems with the bosch plugs. i dont have any first hand experience with them, but if your car runs and you dont notice any hesitation, id let em alone. next time, switch to the tr-55's
There wasn't a FIRST time for me, so when I do finally do them, I will be.


Originally Posted by myk
There's nothing wrong with stock, AC-Delco replacements. That's what I use on my '97Z, '99T/A and they work great. Get those split fires outta' there...
Other than going to the dealer, I've found it semi-hard to get AC plugs around me. When I worked at Checker Auto (Shucks, Kragen same store) they stopped carrying AC plugs, and I don't remember if I can get them from NAPA or not. There's always Car Quest and Red Rooster, but I haven't checked either.
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Old Feb 12, 2008 | 12:38 PM
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I have tried nearly every type of plug out on the market in my LT1, except for those $10 plugs (I forget the name of them; rediculously expensive). They've all worked just fine for me, but eventually I just went back to the TR55's because they're cheap and reliable.
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Old Feb 12, 2008 | 12:44 PM
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I am using TR6's right now......seem fine to me.....
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Old Feb 12, 2008 | 04:27 PM
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Originally Posted by thebufenator
I am using TR6's right now......seem fine to me.....
That's not a Splitfire, so that info doesn't help Thanks for playing though!!
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