Non-Rallye to Rallye Harness Technical Information
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70-74 Ebody non-rallye to rallye wiring harness conversion kit
This kit contains the following items:
- Under dash Tach signal wire
- Under dash Tach +12V wire
- Under dash Clock +12V wire
- Under dash oil pressure gauge wire
- Under hood (motor) tach signal wire
Each of the wires has the correct color with the correct connectors. Some of the wires must be spliced into the original non-rally wires. See the PDF diagram below that shows the exact steps and details of how to install the kit for more info. Note that the under hood tach signal wire is very long and you must cut the wire to the correct length to match your motor and crimp the terminal on the wire. We do this so the same kit can be used for both small block and big block cars. You also may have to unwrap the tape going to some of the light bulbs so that they will have enough length to plug into the rallye dash cluster.