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ONLINE PRODUCT REGISTRATION: Register your MSD product online. Registering your product
will help if there is ever a warranty issue with your product and helps the MSD R&D team create
new products that you ask for! Go to www.msdperformance.com/registration.
Parts Included:
1 - Digital HEI Module, PN 83647
1 - HEI Coil, PN 8225
1 - HEI Cap, 84111
1 - HEI Rotor, 84101
1 - HEI Coil Cover, PN 84022
INSTALLATION
1. Remove the cap, rotor and module
of the original distributor. Make
sure the weights of the mechanical
advance move freely and do not
bind. Also ensure that the distributor
shaft rotates smooth with no wobble
or binding.
2. Apply a liberal coat of the Heat Sink
Compound to the aluminum base
of the Module and to the rubber
insulator. Route the wiring harness
out of the housing and position the
short black wire to ground with one
of the mounting screws (Figure 1).
3. Install the rotor. If you are using an
MSD HEI Pro-Billet Distributor, PN
8365, the supplied Rotor
Adapter must be installed
(Figure 2).
M S D
• W W W . M S D P E R F O R M A N C E . C O M • ( 9 1 5 ) 8 5 7 - 5 2 0 0 • F A X ( 9 1 5 ) 8 5 7 - 3 3 4 4
MSD Digital HEI Kit
PN 8501
1 - Low Resistance Rotor Bushing and Insulator (assembled)
1 - Tube of Heat Sink Compound
1 - Small Screw Driver
1 - Gray Tach Wire
DIGITAL
HEI MODULE
APPLY
HEAT SINK
COMPOUND
DISTRIBUTOR
HOUSING
Figure 2 Installing the Rotor Adapter on an MSD PN 8365 HEI Distributor.
SCREWS AND
CONNECT SHORT
STAR WASHERS
BLACK WIRE
TO GROUND
TO TACH
Figure 1 Installing the Module.
CAP
CONNECTOR
GRAY
TACH
OUTPUT
USE TO
PROGRAM TACH
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Related Manuals for MSD 8501
Summary of Contents for MSD 8501
- Page 1 PN 8501 ONLINE PRODUCT REGISTRATION: Register your MSD product online. Registering your product will help if there is ever a warranty issue with your product and helps the MSD R&D team create new products that you ask for! Go to www.msdperformance.com/registration.
- Page 2 INSTALLATION INSTRUCTIONS 4. Install the cap and coil assembly (Figure 4). 5. Install the spark plug wires to their respective cap terminals, then install the MSD Dust Cover and its three retaining screws. 6. Connect the HEI Module harness to the Distributor Cap.
- Page 3 A tachometer is required to set the rev limit. The limit is programmed by running the engine at half the desired rpm, then momentarily grounding the Gray tach output wire from the MSD. A Gray jumper wire is supplied to connect to the tach with another tee-splice coming off to use for programming.
-
Page 4: Limited Warranty
*Intended normal use means that this item is being used as was originally intended and for the original application as sold by MSD. Any modifications to this item or if it is used on an application other than what MSD markets the product, the warranty will be void.
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