How To Wire Your Hot Rod

Hot Rod / Rat Rod Wiring Diagram

Hot Rod Wiring – Diagram

Please Note: This diagram was designed for 12 volt systems, but can also be used for 6 volt systems. If used for 6 volt, make all the wires heavier by 2 gauges. For example 14 gauge wire will become 12 gauge, 10 gauge will be 8 gauge, etc.


Wiring Diagram

Source: Mike Bishop’s book “How To Build A Traditional Ford Hot Rod”, page 121.

Looking for a basic wiring harness?



Wire hot rod lights? The one automotive job we all dread is the wiring. Yet, with help from this how-to book even the neophyte mechanic can install a wiring harness.

Dennis Overholser, longtime technical specialist for Painless Performance Products and avid hot rodder, walks you through nine chapters sure to clear away your fear of electricity.

Topics include:

  • the basics of DC electricity;
  • installation of additional circuits;
  • choosing and installing the best battery,
  • starter and alternator;
  • installation of the gauges;
  • finding and installing a new EFI harness; and
  • wiring a complete scratch-built hot rod.

Photo-intensive, hands-on sequences document and help explain the installation of both an EFI harness on a late model V-8, and the installation of a complete harness kit into a newly built hot rod.

Written in easy-to-understand language, this new book from Wolfgang Publications is a necessary addition to any hot rodder’s book shelf. With 144 pages and over 350 color photos, this wiring book is the electrical bible you need for that next electrical project.

Shop Now

About Roadkill Customs 313 Articles
Roadkill Customs has evolved into the de facto resource dedicated to low budget, back yard builders and do-it-yourself hot rodders...