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View Poll Results: fav hotrod plug for small block chevy (be specific... heat range, ect.
AC Delco 31 52.54%
Bosch 10 16.95%
Autolite 13 22.03%
Champion 5 8.47%
Voters: 59. You may not vote on this poll

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Old 04-22-2004, 04:56 PM
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spark plug selection

i built an engine and i am wondering wether i am using the plugs best suited for it ...

i have 70's orange block casting w/4.040 bore with vortec

heads compression calculated by head shop at 9.45:1 ; speed

pro hypereutic pistons; speed pro rings; 70's casting steel crank;

gm pink rods; comp cams XE268 cam kit; edlebrock performer

RPM Air Gap Vortec intake; holley 600 vac. sec. / man. choke,

factory converter, turbo 350 and rearend in my 79 nova

i am running Delco R43TS plugs on cheap gas...Can i expect anything more if i run a different heat range or plug

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Old 04-22-2004, 05:13 PM
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Are you 100% sure those are the right plugs for a vortec head?

Vortec heads use a plug with longer threads than the older peanut style plugs that were used from about 1970-95.

You might be creating a hot spot in cylinder not to mention that the plug is recessed up in sparkplug hole (not too efficient at lighting the fuel).
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Old 04-22-2004, 05:25 PM
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Have you tried to do a search on this subject? This topic has been done to death. Here is a recent example thread,
http://hotrodders.com/showthread.php?s=&threadid=38207
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Old 04-23-2004, 08:38 PM
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willys36 what i was really wanting to know was was is a good

3/4 in. shank plug to run with my combo...

i searched and i couldnt find any sparkplug recommendation for

vortec heads...refer to my combo
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Old 04-23-2004, 08:55 PM
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I really like the NGK V-power plugs for sbc's! A good plug at a good price!!
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Old 04-24-2004, 05:04 AM
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Hey wheres splitfire in that selection! You racist!
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Old 04-24-2004, 11:56 PM
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I have had more trouble with Champion plugs than any other plug, in 1cyls to V8s, don't use them!

I use Bosch or NGK. Autolite plugs are pretty good too.
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Old 04-25-2004, 07:28 AM
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I like Autolite, Delco, and NGK plugs. Not a big fan of Champion either even though Chrysler installs them from the factory.


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BUILT FORD TOUGH
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Old 06-01-2004, 10:40 AM
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thanks for the recommendations

i ended up going with an autolite plug that was an alternative

to the 7 dollar plug AC double plat....it also is a cooler heat range

than the AC plug the car idles a lot better and can feel a slight

improvement in acceleration..
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Old 12-19-2004, 02:57 AM
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I have been using Accel plugs now for over 10 years. I stick to the Accel 276 plugs for everyday driving and Accel 274 for when I'm using NOS
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Old 12-19-2004, 11:45 AM
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I run CR43TS, in everything, that doesn't burn oil. When they start burning, I change to a R45TS, so they don't foul out so quickly.

The 250 6-cyl flamethrower, in my 49 burns a quart every 80-100 miles, and even with the washdown caused by throwin' fire, I rarely foul, or drown a plug.
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Old 12-19-2004, 07:22 PM
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ive got CR43TS in my 93 chevy with a vortec 350 but don't think they're the right plugs as 96 and up vortec trucks call for a platinum 41-932.
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Old 05-02-2005, 05:38 PM
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like most of my work trucks and my everyday driver i use AC Delco
I herd Bosh & champion are garbage

Like i said, thats just what i herd

J
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Old 05-02-2005, 11:07 PM
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Wanna know something funny? AC DELCO plugs are made by autolite and NGK!! Didn't believe it untill I pulled a plug out of a 5.3L chevy and the delco plug also had NGK written on it as well as the delco name & #. Phoned up the buyer for delco at my supplier and asked *** was this, and he said ya, autolite and NGK.

Not trying to thread jack, just something interesting on spark plugs!
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Old 05-03-2005, 01:17 AM
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I use NGK, Bosch platnums and AC Delco, I`ll also use autolites. I`ve taken flak in the past for using NGK`s, some said "there foreign made junk" but I don`t care where they come from, they work and that`s what counts, I`ve also had outstanding service out of Bosch platnums, standard Bosch`s I wasn`t too impressed with. Best place for champion, splitfires, and most definitely accel is in the trash, but the trash is about the best place for any accel product.
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