LS2 Wiring Harness | eBay E171 - LS1,LS2,LS3,L92 LS7 Wiring Harness. This kit is designed to upfit any GM LS series engine with 24x crank front or rear cam sensor (specify upon order). Standalone LS2 / LS3 Swap Wiring Harness | Drive by Cable Brand new Standalone LS2 / LS3 swap (drive by cable) wiring harness. No cores or modifications needed. Made in USA with a start-up guarantee.