V8 GM/Chrysler Hemi Small/Big Block 8 x Individual High Output IGN-1A Inductive Coil and Harness Kit

Ultimate Ignition Authority: IGN-1A Coil & Harness Kit for Haltech V8 Setups

For high-boost, high-compression, or high-RPM V8 applications, standard ignition coils often become the limiting factor. The Haltech IGN-1A High Output Inductive Coil Kit is the definitive upgrade for GM and Chrysler V8 engines running a Haltech Terminated Harness. This kit is not merely a set of coils; it is a complete, motorsport-grade ignition solution designed to integrate seamlessly with Haltech’s Elite V8 Terminated Engine Harnesses. By utilizing the legendary Mercury Marine-style IGN-1A coils, this system delivers massive spark energy—exceeding 103 mJ—ensuring complete combustion even under the most extreme cylinder pressures found in drag racing, drift, and time attack vehicles.

The Power of IGN-1A Technology

The IGN-1A coil is widely regarded as the most powerful inductive coil available for smart-coil applications. Unlike standard LS coils, which may struggle above 15psi of boost or high RPM, the IGN-1A features a massive internal winding and a built-in igniter capable of handling extreme dwell times (up to 3.0ms – 4.0ms sustained, application dependent). This results in a spark that is hotter, longer, and more resistant to “blow-out.” The kit includes a specifically engineered Tefzel Mil-Spec harness that plugs directly into your existing Haltech V8 Terminated Harness. This sub-harness incorporates a high-current 75A TE power relay to ensure the coils receive undiluted battery voltage, bypassing the voltage drop often seen in factory wiring, which is critical for maintaining consistent dwell and spark energy.

Integration and Compatibility

This kit is designed as a direct “Plug ‘n’ Play” upgrade for builders already utilizing a Haltech Elite 2000/2500 V8 Terminated Harness, Elite + REM 16 Injector Harness, or the Nexus series equivalents. It replaces the standard coil sub-harness, converting the system to run 8 individual IGN-1A coils in a direct-fire configuration. This is the ideal solution for Big Block Chevy/Ford, Small Block, or Hemi builds where maximum ignition performance is non-negotiable.

Technical Specifications

Kit Includes

• 8 x High Output IGN-1A Inductive Coils (HT-020114)
• 1 x Terminated “Tefzel” Milspec Coil Harness
• 1 x High Current 75A TE Power Relay