Spark plug list for 4.6 2V Mustangs

[Dirty_SOHC]

MOTORCRAFT
PART# / HEAT RANGE
AWSF-32C / stock heat range - copper plug
AWSF-22C / 1 Heat range colder - copper plug
AWSFA-12C / 2 Heat ranges 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 ranges cooler
AR93 / 3 heat ranges cooler
AR92 / 4 heat ranges cooler

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

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

[FoxracerMenace]

Good to know stuff man!

[my86gt]

the Autolite 3924's are also a 2 step colder plug

[my86gt]

never mind i just saw it was for 4.6

[The Moofia Mob]

Thanks for posting this. I need to tune up my 4.6

[Blck_98_STANG]

Thanks for posting up this info.

[Dirty_SOHC]

never mind i just saw it was for 4.6

I'm working on the 5.0 list and should have it up by tomorrow. :mick:

[The Moofia Mob]

I'm working on the 5.0 list and should have it up by tomorrow. :mick:

Keep rolling with all of the good info :thumbsup:

[GDawg]

I'm running the NGK TR-6s. Been very happy with them.

[MichaelsLilGray]

what the hell?! its gone x.x

[FrEvrNLv]

Not sure if this was the original info, but worth a try ...

MOTORCRAFT
PART# / HEAT RANGE
AWSF-32C / stock heat range - copper plug
AWSF-22C / 1 Heat range colder - copper plug
AWSFA-12C / 2 Heat ranges 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 ranges cooler
AR93 / 3 heat ranges cooler
AR92 / 4 heat ranges cooler

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

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

[my86gt]

yes that was the list Laura

[FrEvrNLv]

:wink: :wave:

[Masshole]

actually there was more.. the list was longer.

[my86gt]

then post it :lmao:

[StangFreak2002]

im looking for a one step colder plug for an 02 GT with a cold air, midpipe, and catback? any suggestions would be helpful....

[Drew]

I am lookin into a whole new ignition system.. I dont remember the brand, but there is some that I looked at, some racing plugs that were 45$ a piece!

[mrpork]

I am lookin into a whole new ignition system.. I dont remember the brand, but there is some that I looked at, some racing plugs that were 45$ a piece!

please do tell

[Drew]

I gotta find them again.... They were like Iridium 4 point plugs or somethin like that.

[brentmustanggt]

anyone tried the new E3 SPARK plugs . they kinda expensive but ive heard good things