Engine wiring harness for LS1, 2, 3, 7 engines with MEFI 4B ECU, 24X or 58X crank sensor, with electric fan control. $1,590.00 If you don't see what you're looking for please call or e-mail us. Phone: (480) 753-0208 Fax: (480) 753-0216 Hours: 8am - 5pm M-F Mountain Standard Time