Dominator EFI Kit - LS2/LS3 Late Truck

The Dominator EFI Kit - LS2/LS3 Late Truck represents a complete, bolt-on fuel injection system engineered for late-model LS-platform trucks requiring modern EFI control without full engine rebuild complexity. Built by Holley—the industry standard for performance fuel systems—this kit delivers the reliability of sequential fuel injection paired with the tuning flexibility modern LS enthusiasts demand. Whether you're upgrading from carbureted carburetor ignition or transitioning a crate motor into a late-truck platform, this system bridges the gap between raw LS power and streetable, daily-driven dependability.

The Dominator EFI Kit incorporates Holley's proven sequential fuel injection logic, matching fuel delivery precisely to engine load and RPM for optimized combustion efficiency and emission compliance. The system features a self-contained ECU calibrated specifically for LS2 and LS3 displacement variants, eliminating guesswork during installation and reducing tuning time. Injector staging, spark timing, and idle control are pre-mapped from the factory, though the platform remains fully programmable for forced-induction builds or custom cam profiles. The kit's compact footprint—weighing 12.7 lbs and measuring 15.3 × 9.9 × 26.8 inches—fits within late-truck engine bays without requiring extensive fabrication or bracket modification.

Truck builders and LS swappers benefit most from this kit when installing engines into vehicles that originally lacked modern EFI architecture or require OBD-II compatibility for registration. The late-truck focus ensures harness and sensor inputs align with 2005-and-later GM truck platforms, minimizing adapter hassle and wiring errors common in cross-generation builds. Installation typically demands basic mechanical skill and fuel-system safety knowledge; professional tuning is recommended for optimal idle quality and cold-start behavior, particularly in climates below freezing.