240sx LS1 / Vortec Swap Wiring Harness | Wiring Specialties Brand new Nissan 240sx S13 LS1 / Vortec swap wiring harness. This tucked, plug and play wiring harnesss is made in the USA from the ground-up and is designed to exceed OEM specifications for wire quality and routing. Includes detailed instructions and a start up guarantee. Nissan 240sx S13 LS1 Wiring Harness | SIKKY Brand new, plug and play LS1 wiring harness for a Nissan 240sx S13 with an LS1 engine swap. No core required. Made in USA. Ready to ship.