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Modern ignition. Factory computer. Clean install.

LT-DIS

WORKS WITH STOCK PCM

This is next-level ignition tech, delivered in a plug-and-play package that installs like OEM but with an added performance edge. It is the ignition system the LT1/LT4 engines always deserved.

HOW IT WORKS

The LT-DIS system is a fully engineered ignition upgrade that gives your LT1/LT4 engine the benefits of modern coil-per-plug performance — without replacing your stock PCM. It replaces the Optispark, ignition control module, and single coil, all while working seamlessly with your original engine computer. 

Replaces the Optispark with a all in one sensing unit that bolts into the stock location. Contained on this unit are high-resolution Hall-effect crank and cam sensors that generate LS-style 24x (crank) and 1x (cam) signals. These are converted to factory hi/lo resolution signals the factory PCM can understand.

Includes a keyed crankshaft hub with a pre-installed 24x reluctor, along with a crank sensor and shimming tools for perfect alignment. The reluctor rotates with the crankshaft to ensure precise engine position.

Our proprietary power module installs with ease and delivers dedicated, stable, and reliable power to the LT-DIS system.

The included harness bridges your factory PCM to the new ignition system, cam/crank sensors, and coil packs. Designed for true plug-and-play install — no splicing or custom wiring required.

LS-style GM coils deliver powerful, consistent spark to each cylinder. Coil brackets available separately or mount them your way. From turn key coil bracket setups to DIY. Simply get eight coils on there one way or another.

Smart diagnostics, real-time ignition data, firmware updates, and error code reading through our LT-DIS mobile app — right from your dash.

WHat makes it smart

  • Real-Time Health Checks

    Monitor all system releated parameters, ignition timing, and error conditions directly from your garage using the mobile app

  • Adjustable Dwell + Misfire Detection

    Advanced coil timing management gives you control and reliability.

  • Fully Potted Electronics

    Everything is sealed and protected from heat, vibration, and moisture — built for harsh environments of the street and strip. Anywhere!

  • In-Field Updates

    Our system evolves. Install updates as we release new features for the system and mobile app.

Why LT-DIS?

  • Retains Stock PCM — Works with OBD1 (’92–’95) and OBD2 (’96–’97) LT1 computers.
  • Complete Opti Delete — No more rotor, cap, or optical sensors to fail. It's time to be done with Optisparks
  • No PCM Modifications — Uses factory PCM to run your car like stock — just better.
  • Clean Straightforward Install — No cutting, grinding, or deep engine teardown.
  • Modern Performance — Coil-per-plug tech gives stronger spark, improved throttle response, and smoother idle.
  • Future-Proof — Diagnostics and firmware updates keep your system current.
GET THE LT-DIS

24xLink LS PCM Conversion

FACTORY-grade conversion. LS-level control. Plug-and-play.

HOW IT WORKS

The 24xLink kit transforms your LT1 engine into a fully modernized LS PCM- controlled system using coil-per-plug ignition. The system integrates a crank hub with an externally mounted 24x reluctor and a sensing unit that replaces the Optispark. A PCM and setup ready for racing! Get the most out of your engine upgrades.

The crank hub comes pre-positioned with a 24x reluctor that rotates directly with the crankshaft for perfect signal integrity.

This all-in-one unit replaces the Optispark and houses both crank and cam sensors using OEM GM parts, maintaining exact position using the factory cam and crank bore geometry. A precision 1x reluctor disc spins with the camshaft internally within the sensing unit. A GM cam sensor is precisely aligned for accurate signal.

Drop in the included alignment tool to perfectly set air gap and location—"set it once, forget it."

A re-engineered Gen III 12200411 LS PCM comes ready to accept your stock LT1 engine harness. Inside, proprietary electronics bridge all correct pathways, no repinning or harness modifications needed.

A simple harness connects the new crank/cam sensors and ignition coils to the LS PCM. This is the only new wiring required.

Add the included GM coils, upload a base tune (or provide one for pre-loading), and start your engine.

WHY IT WORKS

  • Crank and cam sensors generate LS-style 24x/1x signals directly from crank and cam movement

  • Replaces the Optispark completely

  • PCM communicates with factory LT1 injectors, sensors, gauges, and even the 4L60E transmission

BENEFITS

  • True plug-and-play LS PCM control with zero factory harness mods

  • Works with 1994–1997 LT factory or standalone engine harnesses

  • Compatible with factory gauge clusters and 4L60E/80E trans. Including 94' and 95 4L60E!! (Torqhead Exclusive)

  • Full OBD2 diagnostics and LS tuning compatibility

  • Every component precision-tested up to 10,000 RPM before shipping

SHOP LS PCM CONVERSION KITS

LT1 COmmunity Approved

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