Here’s everything you need to know about LT ignition upgrades.
The LT1’s factory OptiSpark distributor is notorious for moisture ingress, corrosion, sensor failures, RPM instability and hard-to-service design. Over 25 years later, those problems haven’t gone away. In fact in recent years they have gotten worse all while optisparks become even more expensive.
Upgrading to a modern ignition system doesn’t just solve headaches — it transforms your driving experience with reliable starts, stable timing, and cleaner performance across the RPM range. Bringing back your love for your LT engine and car.
Say goodbye to Optispark failures
Coil-per-plug distributorless technology keeps timing stable at every RPM.
No timing cover removal or major rewiring
Gen 3 LS PCM support opens access to advanced tuning tools.
Quick fitment guide for 1992-1997 LT Platforms
Works with all 1992–1997 LT1/LT4 & L99 platforms (F-Body, B-Body, Y-Body, D-Body).
Supports both early spline-drive (’92–’94) and later pin-drive (’95–’97) generations.
Suited for the everyday LT1 street car
Works with factory 92-97 PCM
Completely deletes Optispark
For enthusiasts who want full LS PCM electronics.
Includes LS PCM + coil-on-plug control.
Suited for race builds
Enhanced tuning support/availability
Completely Deletes Optispark
Explore the entire Torqhead lineup for LT1 & LT4 platforms
This is our stock/factory 24x hub assembly. It is a heavy duty casting and is keyed. This is compatible with any stock crank pulley or stock compatible pulley. The B-Body version comes with spacer to...
This coil pack bracket assembly comes completely assembled, minus you supplying the #19005218 LS Truck Coils. The coil harness is integrated into the bracket and under the cover to provide a clean...
Upgrade your LT1 with Torqhead’s Shallow Body Alternator — a direct-fit replacement for the factory CS144 alternator on 1992–1997 LT1-powered vehicles. Its compact design eliminates the need for...
SOLD OUT!! All 40 level 1 'super early bird' units are Sold out!! Sold out in 38hrs! Move
Three steps to modern ignition for your LT.
Torqhead’s kits eliminate OptiSpark and bring coil-per-plug control + modern PCM intelligence — without tearing down your timing cover. Here’s how:
Replace the OptiSpark with Torqhead’s crank &
cam sensing unit. External 24x reluctor and 1x
cam wheel mount outside the timing cover.
Mount the coil packs neatly with our intake or
valve cover mounted solutions.
Connect the harness to the Torqhead PCM. For LS PCM conversions, this means full LS PCM integration and tuning capability.
From factory limitations to modern reliability — compare your options side by side.
| OPTI SPARK | TORQHEAD LT-DIS |
Torqhead LS PCM Conversion Kit | |
|---|---|---|---|
| Ignition Type | Rotary Distributor with optical sensor | Coil-per-plug (DIS) w/ 24x crank + 1x cam sensing | Full LS PCM coil-per-plug conversion with 24x/1x sensing unit |
| Reliability | Cap/rotor wear, moisture ingress, inadequate sensor, short service life | Exceptional reliability, harsh enivornment ready, modern OEM hall effect sensors | Excellent reliability with modern OEM hall effect sensors |
| Installation | Stock Setup | Bolt-on, plug & play | Bolt-on, plug & play, tuning |
| PCM, Tuning & Diagnostics | Factory Computer | Factory computer with enhanced Ignition Diagnostics | LS PCM and tuning ecosystem |
| TIMING ACCURACY | Degrades with wear/contamination | Stable 24x/1x sensing, strong high-RPM stability | LS PCM and tuning ecosystem |
| Cost | $-Budget units $$-Brand name units |
$$ | $$$ |
| SHOP LT-DIS | SHOP LS PCM KITS |
LT1 COmmunity Approved