The 24xLink PCM is a purpose-built LS Series Gen 3 PCM that seamlessly integrates with your existing LT1/LTx engine harness—no repinning, no guesswork, no downtime. Torqhead re-engineered the interface of a 12200411 PCM to accept LT1-style connectors, giving you true plug-and-play 24x conversion capability in a single, integrated solution.

Simply unplug your factory LT PCM and plug your harness directly into the 24xLink PCM—your 24x conversion wiring and PCM needs are all handled in one component.

Also included is the professionally built 24xLink C3 Harness, which connects the PCM to the coil harnesses, crank sensor, and cam sensor. Every C3 harness is assembled using Delphi connectors, seals, and terminals, and each unit is 100% tested before shipping to ensure flawless operation.

Unlike traditional 24x wiring conversions, the 24xLink system allows unmatched fast turnaround times—wait days, not weeks for your conversion solution. When it arrives, just plug it in.

This PCM requires that your LT engine has a 24x/1x crank and cam signal kit installed, as well as eight coil packs. 

What’s Inside

• 24xLink PCM

  • New or remanufactured 12200411 PCM

  • 100% tested by TorqHead

  • Pre-configured with common 24x conversion parameters

  • Powder-coated for long-lasting protection and appearance

  • LS PCM internally / LT1 connectors externally via an injection-molded LT1 front plate (no soldering, no PCM board modifications)

• 24xLink C3 Harness (Coil, Crank & Cam)

• OBD2 Port (included for 1994–1995 vehicles)

• Knock Sensor(s)

  • (1) for F-Body OBD1 vehicles ('92–'95)

  • (2) for B-Body OBD1 vehicles

• Installation Instructions

Key Features

• True Plug-and-Play – Connects directly to your existing 1994+ LT1 engine harness

• Factory Cluster Compatibility – Works with OEM gauges and displays

• OBD2 Diagnostics – Modern scanning and troubleshooting capability

• 4L60E Compatibility – Fully supports 1994–1995 4L60E transmissions (Torqhead exclusive since 2016)

• All-in-One Conversion Solution – PCM + wiring combined in a single tailor-made package

• Premium Construction – Powder-coated PCM, Delphi-equipped harness, and 100% functional testing

• Fastest Lead Times – Ships days faster than traditional 24x conversion harness services

What’s NOT Included

Custom Engine Tune

The PCM ships with a standard “stock-style” LT1 24x conversion tune.

Options:

• Provide Us a Base Tune (HP Tuners format) – We’ll pre-load it free of charge before shipping

• Custom Base Tune by Torqhead – Available for $135
  (Contact us after purchase to tailor it to your engine/transmission setup.)

Installation Snapshot

1. Remove your existing LT PCM

2. Install the 24xLink PCM

3. Plug your LT1 harness into the red, blue, black, and clear PCM ports

4. Connect the C3 Harness to the PCM

5. Route the C3 Harness to the crank, cam, and coil connectors

6. Connect ignition coil 12V+/GND to the existing LT coil connector

7. (1994–1995 only) Install the supplied OBD2 port inside the cabin

8. (OBD1 vehicles) Swap knock sensor(s) before refilling coolant—these double as coolant drains