Modular plugs

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04-06-2007, 04:17 AM

Quicktime_GT

5th Gear Member

Thread Starter

Join Date: Dec 2005

Location: Kentucky

Posts: 2,406

Modular plugs

from bowlinggreenmustangs.com

Quote:

Thanks to the guys at Modular Depot.

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

04-06-2007, 04:24 AM

97targa

5th Gear Member

Join Date: Apr 2006

Posts: 3,625

RE: Modular plugs

AGSF-32C is a stock heat range, but they have full threads unlike the other Motorcraftplugs. You can strip the heads out of FRRP Headsif you use half threaded plugs. I think only Ford has their plugs set-up like this. Most manufacturers have full length threads which don't hurt non-pi or PI heads at all. I added a few keys terms I forgot to mention!