Stick with the AC Delco plugs
Spark Plug Question - 72 LT-1
Thread Starter
Instructor
Joined: Aug 2004
Posts: 244
Likes: 2
From: Miramar FL
Spark Plug Question - 72 LT-1
OK, guys, looking for some help for a mechanical newbie!
Just got a 72 LT-1 and am in the procees of getting the basics done - oil change, new air filter, etc. One of the things I was thinking of replacing were the spark plugs. I was on Eckler's and saw two of them:
1971-73 ACDelco Small Block Spark Plugs R44TS
Part# A3430
"ACDelco has a "totally correct" spark plug for your Corvette's engine. Sure, others work, but none will perfectly complement the ignition system."
and
1972-75 SplitFire 350ci/454ci Spark Plugs SF14E
Part# 29311
"There's nothing hotter on the market than SplitFire spark plugs. A quick comparison shows how this new design clearly distinguishes it from other plugs. Experts say the result is improved combustion of the air/fuel mixture as seen in better power, mileage and reduced emissions."
Anyone have any experience they can share? Should I just stick to the "original" type plugs or go with a little more modern spark plug? Putting the marketing hype aside, I'd like to get what's best for my Vette. This is a numbers matching LT-1 4-speed coupe, no mods, no a/c, no p/b, no p/b. Thanks in advance for the feedback!
Gary
Just got a 72 LT-1 and am in the procees of getting the basics done - oil change, new air filter, etc. One of the things I was thinking of replacing were the spark plugs. I was on Eckler's and saw two of them:
1971-73 ACDelco Small Block Spark Plugs R44TS
Part# A3430
"ACDelco has a "totally correct" spark plug for your Corvette's engine. Sure, others work, but none will perfectly complement the ignition system."
and
1972-75 SplitFire 350ci/454ci Spark Plugs SF14E
Part# 29311
"There's nothing hotter on the market than SplitFire spark plugs. A quick comparison shows how this new design clearly distinguishes it from other plugs. Experts say the result is improved combustion of the air/fuel mixture as seen in better power, mileage and reduced emissions."
Anyone have any experience they can share? Should I just stick to the "original" type plugs or go with a little more modern spark plug? Putting the marketing hype aside, I'd like to get what's best for my Vette. This is a numbers matching LT-1 4-speed coupe, no mods, no a/c, no p/b, no p/b. Thanks in advance for the feedback!
Gary
Race Director
Joined: Jul 2002
Posts: 10,153
Likes: 15
From: Texas
Originally Posted by Mike Ward
The stock AC Delco plugs are just fine, and you can get them at any auto store.
Race Director
Joined: Jul 2002
Posts: 10,153
Likes: 15
From: Texas
Originally Posted by joe73vette
Actually a change to NGK isn't a bad thing. Not like they are reboxed Champions. LOL Joe
BTW - anyone here know what the "AC" stands for?
Le Mans Master
Joined: Sep 2004
Posts: 6,019
Likes: 568
From: Conroe Texas
Originally Posted by Jeff 6T9
I don't think the NGKs are bad, either. I'm just trying to give a "heads up" to anyone that wants the "old" AC plugs.
BTW - anyone here know what the "AC" stands for?
BTW - anyone here know what the "AC" stands for?
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