Msd 8875 Wiring Harness, GM HEI Installation- User Manual
Msd 8875 Wiring Harness, GM HEI Installation– User Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
MSD to GM HEI Distributor Harness
PN 8875
IMPORTANT: Review the installation procedures of the MSD 6
Series Ignition prior to connecting the wiring harness.
This Harness is designed to simplify the installation of an MSD 6 Series
Ignition Control to a GM HEI Distributor that uses a 5-pin or 7-pin
module (Figure 1). Most of these distributors
DO NOT have a vacuum
advance.
Note: On HEI distributors with a 4-pin module, this Harness cannot be used.
1. Disconnect the 12 volt key connector,
the 3-wire connector coming out of the
distributor and the Tach Connector (if
applicable).
2. Connect the Pink, Black and one of the
Brown wires of the Harness to the corre-
sponding wires of the 3-wire connector
coming out of the distributor.
3. Connect the Red wire of the Harness to
the key connector.
4. Plug the 3-wire connector of the Harness
into the distributor cap.
5. Connect the Orange, Black, Red and
White wires of the Harness to the cor-
responding wires of the MSD Ignition
Control.
6. If there was a tach wire going into the
distributor cap, connect it to the other
brown wire of the MSD harness. If a
tach is not being used, tape and seal
this connector.
Figure 2 Wiring the PN 8875 Harness
Figure 1 Different
HEI Modules.
M S D I G N I T I O N
• w w w . m s d i g n i t i o n . 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
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