Modular Spark Plug List

White99stang · June 22nd, 2008, 05:03 PM

Here is a list of part numbers and heat ranges for plugs on our cars

MOTORCRAFT

PART# / HEAT RANGE
AWSF-32C / stock heat range - copper plug
AWSF-22C / 1 Heat range colder - copper plug
AWSFA-12C / 2 Hea range cooler - copper plug
AGSF-32C/ Recommended for FRPP heads(not sure on heat range)

NGK

PART# / HEAT RANGE
TR-55/ 3951/ Stock Heat Range
TR-6/ 4177/ 1 Step Colder
BP7EFS (PN - 3526) BR7EF (PN - 3346) two steps
R5724-8 (PN - 7317) two and a half steps
R5724-9 (PN - 7891) three steps
R5724-10 (PN - 7993) four steps

AUTOLITE

PART# / HEAT RANGE
764s / Stock
103s / 1 heat range cooler
AR94 / 2 heat range cooler
AR93 / 3 heat range cooler
AR92 / 4 heat range cooler

CHAMPION

PART# / HEAT RANGE
YS-59C / -3 or -4 below stock heat range

DENSO

PART# / HEAT RANGE
IT16 / stock heat
IT20 / -1 heat range
IT22 / -2 heat range
IT24 / -3 heat range

BakerFX4 · June 22nd, 2008, 05:07 PM

Nice!!!!!

00redgt · June 22nd, 2008, 05:17 PM

ppl will still ask lol

B0B · June 22nd, 2008, 05:32 PM

this is a good thread, +rep for ya white.

SWEET2KSTANG · June 22nd, 2008, 11:42 PM

champion:
304's 1 stage colder
344's 2 stages colder

BLK2KGT · June 22nd, 2008, 11:51 PM

Cool now I don't have to wonder lol.

99mustanggtman · June 23rd, 2008, 12:46 AM

good stuff man!

silver99gt · June 23rd, 2008, 12:53 AM

good info man! much appreciated!

RC00GT · June 23rd, 2008, 08:45 AM

Are they in order from best to last or are all the brands good

White99stang · June 23rd, 2008, 08:46 AM

they are just put up there man, no specific order.

CBSTANG · June 24th, 2008, 10:41 AM

this is great info!!!

would it be possible to add the reasons behind the heat range differences? Thanks!

00gtCoolGuy · June 25th, 2008, 11:16 PM

thanks a lot white!

White99stang · June 25th, 2008, 11:55 PM

all and all unless spraying or boosted no need to get anything in the colder heat range.

energiesource · June 28th, 2008, 09:13 AM

what do you have to gap the spark plugs to?

and how the hell do you remove them without taking the fuel rail off?

gills99stang · June 28th, 2008, 10:18 PM

I'll be the first to say that I don't know shit about spark plugs and this list is much appreciated.

Tim, do I need to worry about going colder with my setup? I figure I need to change my plugs soon.

White99stang · June 29th, 2008, 12:48 PM

brenden read post #13

gills99stang · June 29th, 2008, 02:55 PM

Originally Posted by White99stang

brenden read post #13

I saw that, was just wondering if one needs to go colder with a built engine.

HMUSN · June 29th, 2008, 02:55 PM

nope.

White99stang · June 29th, 2008, 08:29 PM

again brenden read post #13 lol.

03_StangGuy · July 11th, 2008, 10:23 AM

How do your determine what heat range you want with boost?

June 22nd, 2008, 05:17 PM	#3
00redgt Hardcore Enthusiast 2000 mustang gt Join Date: Oct 2007 Location: virginia Posts: 1,109	ppl will still ask lol __________________ 2000 GT 1chamber flows.summit tips.20%all around.255/45/17 sumitomo htr z tires.an still slow h pipe soon to come cai an different mufflers

June 22nd, 2008, 05:32 PM	#4
B0B Hardcore Enthusiast 2001 Mustang GT the speed of smell Join Date: Dec 2006 Location: Milton, WA Posts: 1,236	this is a good thread, +rep for ya white. __________________ '01 GT P-1SC 383rwhp, 380rwtq moddedmustang's drunk story teller www.myspace.com/jeepwheelerbob

June 22nd, 2008, 11:42 PM	#5
SWEET2KSTANG MM Fanatic 2000 mustang gt 12.01@114.69 Join Date: Oct 2006 Location: N.W. AR Posts: 4,011	champion: 304's 1 stage colder 344's 2 stages colder __________________ stock long block, bolt ons, slicks, and a little squeeze 1/4 E.T. 12.06@114.69 Only two defining forces have ever offered to die for you: 1. Jesus Christ 2. The American G. I. One died for your soul, the other for your freedom.

June 22nd, 2008, 11:51 PM	#6
BLK2KGT Regular 2000 Mustang GT Join Date: May 2008 Location: Mobile, Alabama Posts: 367	Cool now I don't have to wonder lol. __________________ If you're not 1st you're last -Ricky Bobby Topless Mustang Club Founder

June 23rd, 2008, 12:46 AM	#7
99mustanggtman Enthusiast Join Date: Feb 2007 Location: Germantown MD Posts: 718	good stuff man! __________________ Vortech V2- S-Trim PMAS--FMIC--Turbo XS BOV Focus pump--39LB Injectors Centerforce DF Clutch--Spec Al Flywheel MPH Boost Pipe 3.33'' Pulley *8/6/08*

June 22nd, 2008, 05:03 PM	#1
White99stang #1 Asshole Mod Join Date: Aug 2005 Location: elkridge, MD Posts: 2,586	Modular Spark Plug List Here is a list of part numbers and heat ranges for plugs on our cars MOTORCRAFT PART# / HEAT RANGE AWSF-32C / stock heat range - copper plug AWSF-22C / 1 Heat range colder - copper plug AWSFA-12C / 2 Hea range cooler - copper plug AGSF-32C/ Recommended for FRPP heads(not sure on heat range) NGK PART# / HEAT RANGE TR-55/ 3951/ Stock Heat Range TR-6/ 4177/ 1 Step Colder BP7EFS (PN - 3526) BR7EF (PN - 3346) two steps R5724-8 (PN - 7317) two and a half steps R5724-9 (PN - 7891) three steps R5724-10 (PN - 7993) four steps AUTOLITE PART# / HEAT RANGE 764s / Stock 103s / 1 heat range cooler AR94 / 2 heat range cooler AR93 / 3 heat range cooler AR92 / 4 heat range cooler CHAMPION PART# / HEAT RANGE YS-59C / -3 or -4 below stock heat range DENSO PART# / HEAT RANGE IT16 / stock heat IT20 / -1 heat range IT22 / -2 heat range IT24 / -3 heat range __________________ 99 Mustang GT VT 302 Stroker (race car) 11.13@123 for sale 9k 06 Dodge MegaCab. Cummins diesel power. Diablosport Powerpuck, Silencer ring removed, intake baffling mia, Isspro pyro, boost, and tranny gauges, 6inch chrome tip

June 22nd, 2008, 05:07 PM	#2
BakerFX4 Enthusiast Join Date: Dec 2007 Posts: 631	Nice!!!!!

June 23rd, 2008, 12:53 AM	#8
silver99gt Regular 1999 Mustang GT Join Date: Apr 2007 Location: Long Island, Kansas Posts: 281	good info man! much appreciated!

June 23rd, 2008, 08:45 AM	#9
RC00GT Regular 2000 Ford Mustang GT 14.41 Join Date: Jun 2008 Location: Richmond, VA Posts: 175	Are they in order from best to last or are all the brands good __________________ K&N intake, Diablosport predator, Steeda Underdrive pulley set, Steeda Tri-ax, SLP Catted X-pipe, Flowmaster 50 series DeltaFlow's, Sumitomo HTRZ+ 255\45\17's now that i can drive, hope to break my crappy 14.4

June 23rd, 2008, 08:46 AM	#10
White99stang #1 Asshole Mod Join Date: Aug 2005 Location: elkridge, MD Posts: 2,586	they are just put up there man, no specific order. __________________ 99 Mustang GT VT 302 Stroker (race car) 11.13@123 for sale 9k 06 Dodge MegaCab. Cummins diesel power. Diablosport Powerpuck, Silencer ring removed, intake baffling mia, Isspro pyro, boost, and tranny gauges, 6inch chrome tip

June 24th, 2008, 10:41 AM	#11
CBSTANG Regular 2002 GT ???? Join Date: Jan 2007 Location: Thurmont, MD. Posts: 127	this is great info!!! would it be possible to add the reasons behind the heat range differences? Thanks! __________________ MUSTANG!!! An American legend. The original pony car and muscle car, born on April 17th 1964. The car all other manufacturers tried tried and are still trying to emulate!

June 25th, 2008, 11:16 PM	#12
00gtCoolGuy Enthusiast 2000 Mustang GT 14.675...4200 ft above sea level Join Date: Oct 2007 Location: El Paso, TX Posts: 516	thanks a lot white! __________________ I WANT AN LS1... I'M 4200 FT ABOVE SEAL LEVEL!!!!!!!!!! READ!!!!!

June 25th, 2008, 11:55 PM	#13
White99stang #1 Asshole Mod Join Date: Aug 2005 Location: elkridge, MD Posts: 2,586	all and all unless spraying or boosted no need to get anything in the colder heat range. __________________ 99 Mustang GT VT 302 Stroker (race car) 11.13@123 for sale 9k 06 Dodge MegaCab. Cummins diesel power. Diablosport Powerpuck, Silencer ring removed, intake baffling mia, Isspro pyro, boost, and tranny gauges, 6inch chrome tip

June 28th, 2008, 09:13 AM	#14
energiesource Hardcore Enthusiast Join Date: Oct 2006 Location: Up der in canada eh Posts: 2,373	what do you have to gap the spark plugs to? and how the hell do you remove them without taking the fuel rail off? __________________ 2000 Mustang GT, Steeda Triax shifter, Underdrive pulleys, SLP LM2, MAC L/T and O/R H-pipe. Transmission fix, new clutch Coming soon: Brakes. Last edited by energiesource : June 28th, 2008 at 09:18 AM.

June 28th, 2008, 10:18 PM	#15
gills99stang Hardcore Enthusiast 1999 Mustang GT 13.4 @ 100 Join Date: Sep 2006 Location: Virginia Beach, Virginia Posts: 2,606	I'll be the first to say that I don't know shit about spark plugs and this list is much appreciated. Tim, do I need to worry about going colder with my setup? I figure I need to change my plugs soon. __________________ Brendan '99 Mustang GT [318 rwhp N/A] 2004 F-150 XLT SuperCab (FOR SALE) For sale: piano, boost gauge, F150 muffler, vending machines, windshield wiper assembly, record/8 track player, z28 tail/corner lights, head unit for Nissan Frontier

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June 29th, 2008, 12:48 PM	#16
White99stang #1 Asshole Mod Join Date: Aug 2005 Location: elkridge, MD Posts: 2,586	brenden read post #13 __________________ 99 Mustang GT VT 302 Stroker (race car) 11.13@123 for sale 9k 06 Dodge MegaCab. Cummins diesel power. Diablosport Powerpuck, Silencer ring removed, intake baffling mia, Isspro pyro, boost, and tranny gauges, 6inch chrome tip

June 29th, 2008, 08:29 PM	#19
White99stang #1 Asshole Mod Join Date: Aug 2005 Location: elkridge, MD Posts: 2,586	again brenden read post #13 lol. __________________ 99 Mustang GT VT 302 Stroker (race car) 11.13@123 for sale 9k 06 Dodge MegaCab. Cummins diesel power. Diablosport Powerpuck, Silencer ring removed, intake baffling mia, Isspro pyro, boost, and tranny gauges, 6inch chrome tip

July 11th, 2008, 10:23 AM	#20
03_StangGuy Enthusiast Join Date: Jun 2007 Posts: 935	How do your determine what heat range you want with boost?