Spark Plugs for my 87.
01-16-2009, 12:41 AM
#1
Spark Plugs for my 87.
I would like to stick with AC Delco. Should I go with Iridium, Platinums, or their RapidFire Plugs? A few people have told me there is no point in going with the Iridiums or even the Platinums. It is just a waste of money. Any other plugs I should look at? What do you all use and think?
So the AC Delco Rapidfires are the original Oem? Or is the Oem a different plug? Thanks.
So the AC Delco Rapidfires are the original Oem? Or is the Oem a different plug? Thanks.
Last edited by Whitecloud; 01-17-2009 at 10:09 PM.
01-16-2009, 04:14 AM
#2
Instructor
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I would like to stick with AC Delco. Should I go with Iridium, Platinums, or their RapidFire Plugs? A few people have told me there is no point in going with the Iridiums or even the Platinums. It is just a waste of money. Any other plugs I should look at? What do you all use and think?
..... . . . . Waste of money 
01-16-2009, 09:12 AM
#4
Le Mans Master
I have tried different plugs and none have worked any better than the standard AC Delco that came in the car from the factory.Sometimes you just can't beat stock...WW
01-16-2009, 10:06 AM
#6
Burning Brakes
Another one for the stock AC Delco RapidFire. Available at AutoZone. Don't use the discs they sell at the parts counter to gap it, get an accurate wire gapper, such as this one from SEARS: CLICK HERE. I had used a disc one and not only was it difficult to bend the electrode by rocking it on a hard surface, but it was very inaccurate when I compared it to the wire-version I bought. The wire version has a handy tool that lets you easily bend the electrode. DON'T FORGET ANTISIEZE!!!!!!
01-16-2009, 11:06 AM
#7
Melting Slicks
01-16-2009, 10:58 PM
#9
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Search for this plug you'll find various articles from people with very good technical knowledge.. I find positive articles about RapidFire plugs.. An actual test is the best thing. 
01-17-2009, 09:37 AM
#12
Team Owner
For a stock motor, you can use stock AC Delco wires or a good quality replacement wire. There really is no need for large wires unless you want a specific color or just bling. Same with the coil; the factory coil puts out more than enough voltage to fire the plugs through wires in good condition on a stock motor. And there is no real need for spark boxes like the MSD box or similar.
Once you get to where you have engine mods like increased displacement, higher compression, big cam, bigger injectors, etc., then you can start with ignition upgrades.
I would go with a good quality cap and rotor with brass contacts. IMHO, the aluminum contacts just don't last like hte brass ones.
Once you get to where you have engine mods like increased displacement, higher compression, big cam, bigger injectors, etc., then you can start with ignition upgrades.
I would go with a good quality cap and rotor with brass contacts. IMHO, the aluminum contacts just don't last like hte brass ones.
01-17-2009, 11:03 AM
#13
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For a stock motor, you can use stock AC Delco wires or a good quality replacement wire. There really is no need for large wires unless you want a specific color or just bling. Same with the coil; the factory coil puts out more than enough voltage to fire the plugs through wires in good condition on a stock motor. And there is no real need for spark boxes like the MSD box or similar.
Once you get to where you have engine mods like increased displacement, higher compression, big cam, bigger injectors, etc., then you can start with ignition upgrades.
I would go with a good quality cap and rotor with brass contacts. IMHO, the aluminum contacts just don't last like hte brass ones.
Once you get to where you have engine mods like increased displacement, higher compression, big cam, bigger injectors, etc., then you can start with ignition upgrades.
I would go with a good quality cap and rotor with brass contacts. IMHO, the aluminum contacts just don't last like hte brass ones.
01-18-2009, 09:11 AM
#16
Melting Slicks
For a stock motor, you can use stock AC Delco wires or a good quality replacement wire. There really is no need for large wires unless you want a specific color or just bling. Same with the coil; the factory coil puts out more than enough voltage to fire the plugs through wires in good condition on a stock motor. And there is no real need for spark boxes like the MSD box or similar.
Once you get to where you have engine mods like increased displacement, higher compression, big cam, bigger injectors, etc., then you can start with ignition upgrades.
I would go with a good quality cap and rotor with brass contacts. IMHO, the aluminum contacts just don't last like hte brass ones.
Once you get to where you have engine mods like increased displacement, higher compression, big cam, bigger injectors, etc., then you can start with ignition upgrades.
I would go with a good quality cap and rotor with brass contacts. IMHO, the aluminum contacts just don't last like hte brass ones.
01-18-2009, 10:45 AM
#17
Burning Brakes
Edit: I retract my earlier statement, the RapidFires were not OEM. I just remembered the plugs had been changed once before. 65Z01 has posted the correct AC Delco part # below.
Last edited by janarvae; 01-18-2009 at 02:47 PM.
01-18-2009, 12:48 PM
#19
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While we are talking about plugs, what wires do most of you recommend?
Is the Rapidfire the Oem or is the Oem a different plug?
