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Petris Enterprises

1984-1996 C4 Corvette LS Engine Conversion Electrical Harness Plug and Play Service

$ 1,150.00

Note:

Thank you for your interest in our custom LS harness conversion services! Due to our current workload, we are temporarily unable to offer this service.

We plan to resume offering LS harness conversions in the future and will provide updates as soon as they become available. In the meantime, feel free to explore our other products or contact us with any questions.

This electrical harness includes a new engine and transmission harness, featuring original equipment connections to the forward lamp harness, C100 firewall connector, and passenger-side under-dash harness. For added functionality, vacuum tubing for cruise control and the A/C system is integrated directly into the harness.

To complete the conversion, customers must provide the original C4 engine harness from the C-100 bulkhead connector to the passenger-side under-dash connectors. Any damaged terminals, connectors, or wiring will be replaced with Aptiv OE components and correct TXL-grade wiring, ensuring durability and optimal performance.

Customers who supply an original GM LS engine harness are eligible for a $75.00 discount on the cost of the conversion. Please note that the supplied LS harness will be thoroughly evaluated, and harnesses with significant heat, oil, or grease damage may not be usable.

Compatibility Notice for 1984-1996 C4 Corvette LS Harness Conversion

The LS Engine Conversion Electrical Harness is designed to integrate LS PCM functionality into the C4 Corvette chassis. Please note the following compatibility details:

  • Analog Gauges (1984-1996): Fully functional with the use of our custom-machined adapters and sensors.
  • Digital Gauges (1992-1996): Incompatible with LS PCM; these will no longer function.
  • A/C Systems:
    • Manual systems (C60): No modifications required.
    • Electronic systems (C68): Requires a manual on/off compressor switch for continued operation.
  • ABS (1986-1996): Fully functional with no modifications.
  • ASR (1992-1996): Will be disabled after conversion.

For more details or to discuss your specific setup, please contact us.