This Speed Engineering adapter harness set converts a 2000–2007 GM truck engine wiring harness (4.8L, 5.3L, and 6.0L) to accept EV1 style injectors, the connector used on LS1 injectors. Each adapter plugs into the factory harness connector, and the set includes eight adapters, one for each injector on a V8.
Features:
- Converts GM Truck Injector Harness to EV1: 4.8L/5.3L/6.0L harness to LS1 style injector
- For 2000–2007 GM Truck Wiring Harnesses
- Factory Harness Plug-In
- Sold in a Pack of 8
FAQ
What does this adapter harness do?
It lets a 2000–2007 GM truck engine harness for the 4.8L, 5.3L, or 6.0L plug into EV1 style injectors, the type used on the LS1.
How many adapters are included?
The set includes eight adapters, enough for all eight injectors on a V8 engine.
Does it plug into the factory harness?
Yes. Each adapter plugs into the factory injector harness connector.
Is there a version for EV6 injectors?
Yes. Speed Engineering also offers an LS truck to EV6 injector adapter harness for LS2, LS3, and LS7 style injectors.
Is this part street legal?
No. Speed Engineering sells this adapter harness as a race-only product intended for competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).
⚠️ Race Use Only: This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).
