Owners manual

HEI Dust Cover Conversion
for a Blaster 2 Coil
PN 8401
WARNING: During installation, disconnect the battery cables. When disconnecting the battery,
always remove the Negative cable first and install it last.
Parts Included:
1 - MSD HEI Dust Cover
1 - Y-spliced Pink Wire
1 - Brown Wire
The PN 8401 Dust Cover allows the use of an external Blaster 2 coil with an internal coil GM HEI
distributor.
INSTALLATION
1. Disconnect the 3-pin wiring harness and the single Pink wire connector from the distributor cap.
2. Remove the dust cover from the original coil and remove the internal coil.
Note: Leave the rotor bushing in place.
3. Install the MSD Dust Cover using the original screws.
4. Connect the supplied Brown wire to the Brown wire of 3-pin distributor connector. Connect the
other end of the Brown wire to the coil negative (-) terminal.
5. Connect the supplied Y-Spliced Pink wire to the single Pink wire (switched 12 volts) and the Pink
wire of the 3-pin distributor connector. Connect the other end to the coil positive (+) terminal.
Note: The middle terminal of the 3-pin connector (Black wire) is not used.
6. Install the coil wire to the Cover.
Note: If you plan to install a tachometer, the trigger wire connects to the coil negative terminal.
Figure 1 Wiring Diagram.
M S D I G N I T I O N • w w w . m sd ig ni t i o n. co m • ( 91 5) 85 7 - 5 20 0 • FA X ( 9 1 5 ) 8 57 -3 34 4