LS Engine Harness
- New construction, never a modified core
- Mil-spec concentric twisting, every cable labeled
- Pinout and install guide for your exact configuration
Every transmission we cover, both throttle types, and whatever you have changed on the engine. One harness, cut and built to your exact combination.
We confirm your configuration before anything is cut.
| Connectors | OEM grade or better |
|---|---|
| Terminals | Deutsch / Delphi |
| Wire | TEFZEL or TXL |
| Loom | DR-25 or fiberglass |
| Relays | Custom-made Bussmann; CarTek PDM for higher-end clients |
| Fuse boxes | Custom-made Bussmann |
| Construction | Mil-spec concentric twisting, labeled cables |
| Engine / ECU | One size fits all |
New construction, built from scratch to your combination. Not a modified core. A stock harness carries the age and the damage of the car it came out of, and rework does not take that back out.
Coverage is one size fits all across LS engines and ECUs. What changes the build is your transmission, whether you run drive-by-cable or drive-by-wire, and anything on the engine that is not stock.
What you specify
- Transmission: 4L60E, 4L70E, 4L80E or T56
- Throttle: drive-by-cable or drive-by-wire
- Anything changed on the engine: swapped sensors, a different throttle body, a turbo setup
The build sheet you submit is what we build to, so read it before you confirm it. Every cable is labeled, and the pinout for your exact configuration ships in the box and lands in your inbox.