Shop Holley 550-602 ECU and harness kit for GM LS1 engines with plug-and-play wiring, EFI control, and simplified engine management setup.
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The Holley 550-602 ECU and Harness Kit is engineered to simplify EFI control for GM LS1 engine applications. Combining an electronic control unit with a matched wiring harness, the kit provides an integrated solution for engine swaps, performance upgrades, and custom vehicle projects. || Designed to streamline installation, the harness interfaces with supported LS1 sensors and engine components while reducing wiring complexity. The ECU supports fuel and ignition management functions necessary for dependable EFI operation. || Suitable for muscle car conversions, street performance builds, and custom fabrication projects, the 550-602 package offers a centralized engine management solution backed by Holley EFI technology.
| Brand | Holley |
|---|---|
| Model | ECU Harness Kit |
| MPN | 550-602 |
| Product Type | EFI Control Kit |
| Material | Electronic assembly |
| Finish Color | Black |
| Dimensions | Not Published |
| Weight (lb) | Not Published |
| Load Capacity | Not Published |
| Drawer Count | Not Published |
| Drawer Type | Not Published |
| Lock Type | Not Published |
| Mount Type | ECU mount |
| Installation | Plug-and-play wiring |
| Compatibility | GM LS1 engines |
| Use Case | Engine management |
| Warranty | Limited Warranty |
| Country of Origin | USA |
| Series | EFI Systems |
| UPC | 90127666920 |
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