GM Northstar Products

The Cadillac Northstar V8 has been celebrated as one of the most technologically advanced engines ever produced. Smooth, powerful and loaded with innovation, this engine single handedly put Cadillac back on the performance map after more than a 40-year absence.

The Northstar is a smooth operator with a polished look to match its high class performance. To keep that look, you need a custom built wiring harness to match your carefully detailed Street Rod or Cadillac engine bay.

Howell’s Northstar harnesses have injector branches that follow the factory layout with the highest quality loom and bindings for an impeccably finished installation. The required pre-programmed GM ECM can be mounted inside the vehicle and hidden out of sight and out of mind.

And don’t think our Northstar harnesses are just for looks. They feature clearly labeled Packard Weatherpack connectors that make installation a breeze. Carefully hand built using GM/Packard high temperature wire and made specifically for your hot rod chassis or OE replacement application, these harnesses match your advanced Northstar engine in performance and reliability.

Howell also has all the Northstar SFI support accessories you need including sensors, fuel pumps, air filters and service manuals. Howell Northstar products are fully compatible with standard EFI diagnostic tools and scanners, and detect standard GM trouble codes, giving you quick answers if issues arise.

Smooth EFI installation for the smooth, powerful Northstar V8. Clearly, Howell has the Cadillac of Northstar SFI solutions