What is the difference between the Gen III and Gen IV LS engine harnesses?

The Gen III 24X LS engine has a crank sensor located at the rear of the block behind the starter, and the camshaft sensor located at the rear of the block on top. The Gen IV 58X LS engine has a different crank trigger design, requiring a different harness.

What other parts do I need to install this harness?

This is a supplemental harness that connects to the Pro-Flo 4 LS EFI Kit's main harness labeled "Coils/IAC". You will need the Pro-Flo 4 EFI system to use this harness.

Where can I find technical support for this product?

Edelbrock offers technical support through real-time chat on their website, or you can call their Tech Line at (800) 416-8628. Detailed instructions are also included with the harness.

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Specifications

Brand: Edelbrock
Part #: 35713
UPC: 085347357130

Edelbrock Pro Flo 4 IAC Ignition Harness 24X Gen III LS

Name: Edelbrock Pro Flo 4 IAC Ignition Harness 24X Gen III LS
Brand: Edelbrock
SKU: edelbrock-edelbrock-pro-flo-4-iac-ignition-harness-24x-gen-iii-ls-t14-197307
Price: 140.83 USD
Availability: BackOrder

$140.83

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Supplemental harness for Pro-Flo 4 EFI systems installed on Gen III 24X LS engines.

Key Features

Connects coil pack harness — allows ignition system to communicate with the EFI
Connects crank sensor — provides engine position data to the EFI
Connects cam sensor — provides camshaft position data to the EFI
Connects stepper IAC motor — controls idle speed
Required for Gen III 24X LS engines — ensures proper EFI system operation
Detailed instructions included — simplifies installation

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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