The Chevrolet Performance Chassis Wiring Harness was engineered if you're building a hot rod or restoring an old muscle car. Chevrolet Performance inclusive wiring harness kits make a great replacement for old, worn or damaged wires. These universal wiring kits come with the wires pre-installed on the fuse block, so wiring the vehicle is simply a matter of mounting the fuse block and routing the wires. Each wire is preprinted with the necessary application and is GM-color-coded. The kits also come with all necessary fuses, flashers, horn relay, tach leads, wire ties and grommets. High-temperature, 275-deg wire is used - one size larger than factory specs. In all, it's everything you need to electrify your vintage GM car or truck!