What spark plugs do ypu prefer

skiwesser · 06-16-2004, 11:41 PM

I usually go with Motorcraft or autolite, but I don't know what choices there are. All I know is what the computer at autozone says will fit (like 5 choices). The plugs I see some of you guys running I don't know where to get or what will fit?If you say "hotter than stock" the kid at a-zone might as well be selling matresses cause he don't know what your talking about!
What do you gurus use and what do you gap them to?
Thanks
Wes

TMASTER · 06-16-2004, 11:43 PM

autolite for 5.0

skiwesser · 06-17-2004, 02:03 AM

Which autolite? because after I posted I remembered that the autolites I got from A-zone are longer than the motorcrafts and make the wire boots touch the headers on a couple of cylinders
Headers are only 1 1/2 unequals, boots are 45*,should I maybe use straight boots? Stock ones are angled aren't they?

GhettoPop · 06-17-2004, 08:24 AM

i just use the autolite for a stock 5.0. i forget the part # offhand, there is a part # serch engine on autolite's web site, check it out. i gap the copper plugs to i believe .054 and never had any probs.

skiwesser · 06-17-2004, 04:11 PM

Upon further inspection the only hole that requires a shorter plug is #2 I have to use a bosch super $.99. Any other listed plug for my car is longer than the B. super & the longer plugs puts the boot right on the header tube!!
I guess I'll have to get 1 wire with a straight boot?

Fat0eknee · 06-17-2004, 07:20 PM

.99 cent autolites

stang_racer20 · 06-17-2004, 08:56 PM

Autolite is #1 in my book. Motorcraft are a good OE plug too.

Ieatcamaros · 06-17-2004, 09:33 PM

You should not have header clearance issues with 1 1/2 unequal shorties. I have 1 3/4 longtubes in my 351 car and run motorcraft 450's or autolite 24's. Gapped at .054. In my 302 car, I have BBK equal length shorties with 1 5/8 primaries and the same plugs with no clearance issues. The stock wires are angled 45 degrees. What kind of wires do you have?

BTW, I have better luck with the autolites over the motrcrafts. Autolite gets my vote. Bosch supers suck ass. Even Champions are better than them.

skiwesser · 06-18-2004, 01:09 AM

My wires are stock replacement 8mm dbl. silicone from a-zone, 45* boots, they're lifetime warnt. so I change them about twice a year.
I agree that bosch supers suck but they're short so they will work in hole #2, all others have motorcrafts in them right now.
I need a good plug thats as short as a bosch super or a straight boot on that wire.
Is it possable to put a straight boot one that wire? Can I buy just a boot?
Or should I crimp that header tube for clearance, I't wouldn't take much.
Thanks guys!!

302 LX Eric · 06-18-2004, 07:53 AM

Good old Autolite #3924's for my 331 stoker! Just the plain old copper ones.

E

skiwesser · 06-20-2004, 12:49 AM

302 LX Eric,
Do you run stock heads, intake , cam?

Mach 1 · 06-20-2004, 12:57 PM

NGK's are generally regarded as the best plug around for the money and what I would recommend.

Ackbar00 · 06-20-2004, 02:33 PM

Autolites here

302 LX Eric · 06-23-2004, 07:44 AM

Quote:

Originally posted by skiwesser
302 LX Eric,
Do you run stock heads, intake , cam?

No. I run TFS TW heads, TFS Track Heat Intake and an Anderson N-41 cam...all with Autolite 3924's

E

crazypete · 06-23-2004, 08:31 AM

So out of curiosity, what makes a plug "bad" or "crap"? It's just a rod of copper in a ceramic insulator and some threads to screw it in with. What makes some plugs "better" than others?

Mach 1 · 06-24-2004, 12:42 AM

I would say quality of construction would be a consideration. I had a whole set of autolights develop a "rattle" to them. When I shook them, they would sound like something was loose internally. I have tried to avoid them since.

06-17-2004, 08:24 AM	#4
GhettoPop Gimme a Drink! Join Date: Dec 2002 Location: NYC Posts: 694	i just use the autolite for a stock 5.0. i forget the part # offhand, there is a part # serch engine on autolite's web site, check it out. i gap the copper plugs to i believe .054 and never had any probs. __________________ 1990 GT,stock T-5,K&N w/o air silencer,March underdrives,FMS wires,timing@14*,PA Perf 130amp alt,Steeda Tri-Ax Shifter,Steeda adj quadrant/clutch cable/firewall adj,Centerforce II clutch,o/r x-pipe,Magnaflow SS catback,g-load brace, subframes,Bilstein struts/shocks,Autometer gauges, 136k and running strong!

06-17-2004, 04:11 PM	#5
skiwesser Registered Member Join Date: Sep 2000 Location: rock hill,S.C. 29730 Posts: 420	Upon further inspection the only hole that requires a shorter plug is #2 I have to use a bosch super $.99. Any other listed plug for my car is longer than the B. super & the longer plugs puts the boot right on the header tube!! I guess I'll have to get 1 wire with a straight boot? __________________ 88 GT: subs,pullies, 1 3/4 longtubes, flowmasters, AFR 165's,T,F #1 cam,Thyphoon intake, 24# inj., 73mm C&L,65mmT.B., 190LPH pump, Eagle sir rods, forged pistons in a newly rebuilt 306. DYNO TUNED TO 300.97 RWHP 337RWTQ

06-17-2004, 08:56 PM	#7
stang_racer20 Registered Member Join Date: Jun 2003 Location: Wisconsin Posts: 348	Autolite is #1 in my book. Motorcraft are a good OE plug too. __________________ 92 Mustang GT, 347 Stroker(Forged Steel Crank/Rods-Balanced, Forged Aluminum Dished Pistons), Trick Flow Track Heat Intake, Trick Flow Twisted Wedge Heads w/ Stage 3 port/polish, 80mm C&L MAF, FMS 30# Inj., BBK AFPR, Trick Flow Stage 2 Cam, Trick Flow 1.6R Rockers, BBK E.L. Headers, Flowmaster Cat-Back, MAC CAI, FMS Pulleys, Griffin Alum. Radiator, MSD Pro-Billet Distributor; AOD, Dynamic 3300 Lockup Converter, B & M Super Cooler, B&M Ratchet Shifter; 3:73 gears.

06-17-2004, 09:33 PM	#8
Ieatcamaros Domestic Rice really sucks! Join Date: Apr 2002 Location: KY Posts: 973	You should not have header clearance issues with 1 1/2 unequal shorties. I have 1 3/4 longtubes in my 351 car and run motorcraft 450's or autolite 24's. Gapped at .054. In my 302 car, I have BBK equal length shorties with 1 5/8 primaries and the same plugs with no clearance issues. The stock wires are angled 45 degrees. What kind of wires do you have? BTW, I have better luck with the autolites over the motrcrafts. Autolite gets my vote. Bosch supers suck ass. Even Champions are better than them. __________________ The sig says it all.

06-18-2004, 01:09 AM	#9
skiwesser Registered Member Join Date: Sep 2000 Location: rock hill,S.C. 29730 Posts: 420	My wires are stock replacement 8mm dbl. silicone from a-zone, 45* boots, they're lifetime warnt. so I change them about twice a year. I agree that bosch supers suck but they're short so they will work in hole #2, all others have motorcrafts in them right now. I need a good plug thats as short as a bosch super or a straight boot on that wire. Is it possable to put a straight boot one that wire? Can I buy just a boot? Or should I crimp that header tube for clearance, I't wouldn't take much. Thanks guys!! __________________ 88 GT: subs,pullies, 1 3/4 longtubes, flowmasters, AFR 165's,T,F #1 cam,Thyphoon intake, 24# inj., 73mm C&L,65mmT.B., 190LPH pump, Eagle sir rods, forged pistons in a newly rebuilt 306. DYNO TUNED TO 300.97 RWHP 337RWTQ

06-16-2004, 11:41 PM	#1
skiwesser Registered Member Join Date: Sep 2000 Location: rock hill,S.C. 29730 Posts: 420	What spark plugs do ypu prefer I usually go with Motorcraft or autolite, but I don't know what choices there are. All I know is what the computer at autozone says will fit (like 5 choices). The plugs I see some of you guys running I don't know where to get or what will fit?If you say "hotter than stock" the kid at a-zone might as well be selling matresses cause he don't know what your talking about! What do you gurus use and what do you gap them to? Thanks Wes __________________ 88 GT: subs,pullies, 1 3/4 longtubes, flowmasters, AFR 165's,T,F #1 cam,Thyphoon intake, 24# inj., 73mm C&L,65mmT.B., 190LPH pump, Eagle sir rods, forged pistons in a newly rebuilt 306. DYNO TUNED TO 300.97 RWHP 337RWTQ

06-16-2004, 11:43 PM	#2
TMASTER Registered Member Join Date: Sep 2002 Location: TEXAS Posts: 161	autolite for 5.0

06-17-2004, 02:03 AM	#3
skiwesser Registered Member Join Date: Sep 2000 Location: rock hill,S.C. 29730 Posts: 420	Which autolite? because after I posted I remembered that the autolites I got from A-zone are longer than the motorcrafts and make the wire boots touch the headers on a couple of cylinders Headers are only 1 1/2 unequals, boots are 45,should I maybe use straight boots? Stock ones are angled aren't they? __________________ 88 GT: subs,pullies, 1 3/4 longtubes, flowmasters, AFR 165's,T,F #1 cam,Thyphoon intake, 24# inj., 73mm C&L,65mmT.B., 190LPH pump, Eagle sir rods, forged pistons in a newly rebuilt 306. DYNO TUNED TO 300.97 RWHP 337RWTQ*

06-17-2004, 07:20 PM	#6
Fat0eknee I'm slow ...I know. Join Date: Dec 2003 Location: houston Posts: 518	.99 cent autolites

06-18-2004, 07:53 AM	#10
302 LX Eric or '331 LX Eric' Join Date: Jan 1999 Location: Columbus, Ohio Posts: 2,142	Good old Autolite #3924's for my 331 stoker! Just the plain old copper ones. E __________________ 1991 5.0 LX Coupe - 40,750 miles 331 cu. in. / Tremec 3550 / BFG Drag Radials 12.22 @ 114.31 mph - w/1.89 60'

06-20-2004, 12:49 AM	#11
skiwesser Registered Member Join Date: Sep 2000 Location: rock hill,S.C. 29730 Posts: 420	302 LX Eric, Do you run stock heads, intake , cam?

06-20-2004, 12:57 PM	#12
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	NGK's are generally regarded as the best plug around for the money and what I would recommend. __________________ 2002 GT 1993 GT (SOLD) '93 Mustang GT RHC member #142

06-20-2004, 02:33 PM	#13
Ackbar00 Rebel Fleet Commander Join Date: Oct 2001 Location: Huber Heights, OH Posts: 1,003	Autolites here __________________ 1993 Mustang GT, PTK w/ T-64 - My Cardomain Webpage 11.25@123.5 on only 8 psi. 10.84@121 on only 1 headgasket "The Truth is, Your the Weak, and I am the Tyranny of Evil Men!"

06-23-2004, 08:31 AM	#15
crazypete Registered Member Join Date: Sep 2002 Location: Boston Posts: 592	So out of curiosity, what makes a plug "bad" or "crap"? It's just a rod of copper in a ceramic insulator and some threads to screw it in with. What makes some plugs "better" than others? __________________ 91 GT Carb conversion, holley 600 double pumper, edelbrock performer intake, FMS "C" drop springs, march 1000 underdrive pullies, crane 1.7 roller rockers, GT-40P headers, bassani x pipe, american thunder catback, FMS 4.56's, msd aL6, trunkmount battery, A/C eliminator kit, 3000 stall tci streetfighter, AOD with transgo kit, A+ servo, 300M hardened lockup shaft, kevlar bands and 28,000 gvw trans cooler, 3 core radiator, 300 lbs stripped with a full interior

06-24-2004, 12:42 AM	#16
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	I would say quality of construction would be a consideration. I had a whole set of autolights develop a "rattle" to them. When I shook them, they would sound like something was loose internally. I have tried to avoid them since. __________________ 2002 GT 1993 GT (SOLD) '93 Mustang GT RHC member #142

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