MSD 8861 Module Bypass Cable GM HEI Distributor

The MSD 8861 Module Bypass Cable is designed for use with GM HEI (High Energy Ignition) distributors when installing an MSD ignition box. This bypass cable allows the ignition system to route the trigger signal from the HEI distributor directly to the MSD ignition control box, effectively bypassing the factory ignition module inside the distributor.

When an MSD ignition control unit is added to a GM HEI-equipped vehicle, the internal distributor module must be bypassed so the MSD box takes over all timing and ignition control functions. The MSD 8861 provides a simple, plug-and-play wiring solution that eliminates the need for custom fabrication or splicing into factory wiring.

Key Features:

• Designed specifically for GM HEI distributor applications
• Enables proper integration of MSD ignition control boxes with GM HEI distributors
• Bypasses the factory ignition module so the MSD unit handles ignition control
• Plug-and-play design for straightforward installation
• Compatible with MSD 6-Series and other MSD ignition boxes requiring an HEI interface
• Quality connectors ensure a reliable, secure electrical connection

The MSD 8861 Module Bypass Cable is an essential accessory for anyone installing an MSD ignition system on a GM HEI distributor-equipped engine, ensuring correct operation and maximizing the performance benefits of the MSD ignition upgrade.