Pro-Flo 4 EFI - ECU & Engine Harness Kit for GEN IV 58x LS Engines w/ Tablet

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Edelbrock Pro-Flo 4 ECU & Harness Kit #35712 is for use with Chevrolet Gen IV 58X LS engine installations into non-EFI vehicles. Allows you to retain the LS engine's OEM electronic fuel injection system.
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If you're installing a Gen IV Chevy LS engine into a hot rod, street machine or any non-EFI vehicle and want to retain the LS engine's OEM electronic fuel injection system, the new Pro-Flo 4 LS ECU & Harness Kit #35712 is what you'll need to complete the installation and get your Gen IV LS up and running to its full potential. This kit is designed specifically for the Gen IV LS engine with a 58X reluctor identified by the gray camshaft sensor mounted in the timing cover. The compact ECU and harness integrate seamlessly with the existing LS injectors, coils, camshaft/crank sensors and other factory intake manifold connections to greatly simplify the installation, start-up and performance tuning processes. This kit provides the perfect solution for those "junkyard" LS engine swaps where the factory ECU and wiring harness may be missing or damaged. The Gen IV LS ECU & Harness Kit #35712 can be used for any level of LS performance, and what makes this kit so unique and easy to use is the Edelbrock E-Tuner application, which eliminates the need for laptop tuning or costly dyno sessions. The E-Tuner is a user-friendly app that uses Bluetooth connectivity to communicate with the ECU and comes pre-installed for you in the kit's included Android-based tablet. You can also download it free of charge in the Google Play Store to use with your Android-based smartphone. The key to the E-Tuner's simplicity is a Setup Wizard that guides you step by step through the initial programming for your particular engine. Once you provide the Setup Wizard with basic data (type of engine, cubic inches, firing order, cam profile), the E-Tuner then selects the most appropriate base calibration for your engine. As you drive the vehicle, the self-learning E-Tuner continually maximizes the fuel map according to the environment and your driving style so that your engine is always performing at its best.


Availability Available
Application Application Specific
UPC 00085347357123
System Type ECU And Harness Kit
Recommended Use For Use With 58x Reluctor Crank Trigger
Quantity Kit
Wiring Harness Included Yes
Availability Note Available to Order
Warranty 12 Months
Emissions Code
Hazardous Materials Warning WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit
Installation Notes
  • For use with 58x reluctor crank trigger. The Gen IV 58X LS cam sensor is mounted in the timing cover and is gray in color. This kit is not for use with drive-by-wire applications. Does not include transmission control.