Corporation Automobile Parts User Manual
Catalog #3562, 3563, 3564, 3565
Rev. 3/06 Page 3 of 16
©2006 Edelbrock Corporation
Brochure #63-0047
IMPORTANT INSTRUCTIONS
For ordering your FREE Edelbrock computer chip.
You must use
an Edelbrock chip with the Performer Multi-Point EFI conversion
®
You must change the computer chip in your stock computer (ECU) for proper functioning and maximum performance with the
Edelbrock Performer Multi-Point EFI for 7.4L or 8.2L Chevy/GMC engines.
To receive your ECU chip, please complete the attached postage-paid card and send to Edelbrock. After receiving your card,
Edelbrock will send the computer chip within the continental U.S., free of charge via UPS second day air. Orders
outside of the continental U.S. will be shipped via the best method at the same costs as continental UPS second
day air. If requested, customers may pay for expedited shipping by providing a current Visa or Master Card.
When filling out your information card, please print c
learly.
The information below will help you to locate your ECM Service Number and Broadcast Code:
SERVICE NUMBER
BROADCAST CODE
Typical ECM Label
SERV. NO. 16144288 AWHF
86AWHF K112731181
16155501 AWHF
86AWHFK112731181
1. The ECM is accessible in pick-ups by removing the glove box liner. This requires removing four (4) small hex head screws
and pulling out the liner. The ECM sits vertically in a plastic cradle on the far right side of the dash with the connectors
facing to the rear.
2. The Broadcast Code is stamped on a white paper label, located on the top of the ECM. Typical codes for the 5.7L run
from AKSM to BDXX, increasing alphabetically with later release dates.
There is a plastic decal on the bottom of the glove compartment with a list of the RPO codes for that vehicle.
This is a listing of the “RPO” codes and what they stand for:
CODE VEHICLE EMISSIONS
NA1 Under 8600 GVW
NA4 Over 8600 GVW
NA5 Federal
NB2 California
NB8 New York/California
NM8 Special Fuel Compatible
CODE TRANSMISSION
MD8 4L60 Auto
M30 4L68E Auto
MT1 4L80E Auto
MG5 Manual w/ Deep Low
MY2 Manual 5-Speed
M20 Manual 4-Speed
CODE
ENGINE
L03 5.0L TBI V8
L05 5.7L TBI V8
L19 7.4L TBI V8
CODE REAR AXLE
GU2 2.73:1
GU3/GW9 2.93:1
GU4 3.08:1
GU6 3.42:1
GT4 3.73:1
GT5 4.10:1
HC4 4.56:1