---
title: "The Ringbrothers Built a 700 HP 1969 Ford Mustang Mach 1 “UNKL” To Honor Their Uncle"
description: "The world-famous Ringbrothers revealed its latest concoction and the firm's first-ever Ford Mustang Mach 1-based build at the 2019 SEMA show. It's called the \"UNKL\" and it's a 700-horsepower monster build that pays tribute to the founders' uncle and their relationship and shared passion for cars."
date: "2019-11-05"
modified: "2019-11-05"
authors:
  - name: "Chris Chin"
    link: "https://www.thedrive.com/authors/chris-chin"
url: "https://www.thedrive.com/news/30859/the-ringbrothers-built-a-700-hp-1969-ford-mustang-mach-1-unkl-to-honor-their-uncle"
categories:
  - "Builds"
  - "Culture"
  - "Ford News"
  - "News"
  - "News by Brand"
tags:
  - "Coupe"
  - "Ford"
  - "Mustang"
  - "sports car"
---

# The Ringbrothers Built a 700 HP 1969 Ford Mustang Mach 1 “UNKL” To Honor Their Uncle

![](<https://www.thedrive.com/wp-content/uploads/images-by-url-td/content/2019/11/2019-SEMA-Ringbrothers-1969-Ford-Mustang-Mach-1-UNKL-5.jpg>)
*\<em\>www.thedrive.com</em>*

If Ford’s new Mustang-inspired EV crossover isn’t your idea of what a pony car should be, then this latest custom by the [Ringbrothers](<https://www.thedrive.com/article/15628/this-is-the-ringbrothers-hellcat-powered-amc-javelin>) may tickle your fancy for those who like to keep it traditional. Meet the one-of-a-kind, 700-horsepower 1969 Ford Mustang Mach 1 “UNKL.”

As part of their SEMA offensive, the [Ringbrothers’](<https://www.thedrive.com/news/24581/the-ringbrothers-show-off-its-seaker-k5-blazer-build-at-sema-2018>) latest concoction was built as a tribute to the uncle of owners, Mike and Jim Ring, who developed a close relationship with him due to their passion for cars. It also happens to be the first Mustang Mach 1 build to come from the firm’s Spring Green, Wisconsin-based shop.

As you’d expect, the parts list for this build is nothing short of spectacular.

![message-editor%2F1572983988250-2019sema-ringbrothers1969fordmustangmach1unkl9.jpg](<https://www.thedrive.com/wp-content/uploads/content-b/message-editor/1572983988250-2019sema-ringbrothers1969fordmustangmach1unkl9.jpg>)
*Jeremy Cliff for the Ringbrothers*

![message-editor%2F1572984003088-2019sema-ringbrothers1969fordmustangmach1unkl10.jpg](<https://www.thedrive.com/wp-content/uploads/content-b/message-editor/1572984003088-2019sema-ringbrothers1969fordmustangmach1unkl10.jpg>)
*Jeremy Cliff for the Ringbrothers*

![message-editor%2F1572984017979-2019sema-ringbrothers1969fordmustangmach1unkl26.jpg](<https://www.thedrive.com/wp-content/uploads/content-b/message-editor/1572984017979-2019sema-ringbrothers1969fordmustangmach1unkl26.jpg>)
*Jeremy Cliff for the Ringbrothers*

![message-editor%2F1572984031566-2019sema-ringbrothers1969fordmustangmach1unkl15.jpg](<https://www.thedrive.com/wp-content/uploads/content-b/message-editor/1572984031566-2019sema-ringbrothers1969fordmustangmach1unkl15.jpg>)
*Jeremy Cliff for the Ringbrothers*

![message-editor%2F1572984041673-2019sema-ringbrothers1969fordmustangmach1unkl12.jpg](<https://www.thedrive.com/wp-content/uploads/content-b/message-editor/1572984041673-2019sema-ringbrothers1969fordmustangmach1unkl12.jpg>)
*Jeremy Cliff for the Ringbrothers*

![message-editor%2F1572984059981-2019sema-ringbrothers1969fordmustangmach1unkl.jpg](<https://www.thedrive.com/wp-content/uploads/content-b/message-editor/1572984059981-2019sema-ringbrothers1969fordmustangmach1unkl.jpg>)
*Jeremy Cliff for the Ringbrothers*

The car started off life as your average ’69 Mach 1. As with every Ringbrothers project, the Mach 1 was then restored and given a widebody kit for a race-car-inspired look. The exterior personality swap is thanks to a series of panel modifications made up of a combination of carbon-fiber and steel, all done up by the [Ringbrothers](<https://www.thedrive.com/new-cars/18682/driving-the-1000-hp-ringbrothers-amc-javelin-speak-loudly-and-carry-a-hellcat-powered-stick>) themselves. The duo then added custom billet taillights, specially shaped bumpers, and finished off the build with a special BASF-sourced Big Boss Blue paint job.

![message-editor%2F1572984088591-2019sema-ringbrothers1969fordmustangmach1unkl14.jpg](<https://www.thedrive.com/wp-content/uploads/content-b/message-editor/1572984088591-2019sema-ringbrothers1969fordmustangmach1unkl14.jpg>)
*Jeremy Cliff for the Ringbrothers*

![message-editor%2F1572984100742-2019sema-ringbrothers1969fordmustangmach1unkl1.jpg](<https://www.thedrive.com/wp-content/uploads/content-b/message-editor/1572984100742-2019sema-ringbrothers1969fordmustangmach1unkl1.jpg>)
*Jeremy Cliff for the Ringbrothers*

![message-editor%2F1572984109241-2019sema-ringbrothers1969fordmustangmach1unkl3.jpg](<https://www.thedrive.com/wp-content/uploads/content-b/message-editor/1572984109241-2019sema-ringbrothers1969fordmustangmach1unkl3.jpg>)
*Jeremy Cliff for the Ringbrothers*

![message-editor%2F1572984128714-2019sema-ringbrothers1969fordmustangmach1unkl2.jpg](<https://www.thedrive.com/wp-content/uploads/content-b/message-editor/1572984128714-2019sema-ringbrothers1969fordmustangmach1unkl2.jpg>)
*Jeremy Cliff for the Ringbrothers*

![message-editor%2F1572984138874-2019sema-ringbrothers1969fordmustangmach1unkl23.jpg](<https://www.thedrive.com/wp-content/uploads/content-b/message-editor/1572984138874-2019sema-ringbrothers1969fordmustangmach1unkl23.jpg>)
*Jeremy Cliff for the Ringbrothers*

![message-editor%2F1572984150638-2019sema-ringbrothers1969fordmustangmach1unkl24.jpg](<https://www.thedrive.com/wp-content/uploads/content-b/message-editor/1572984150638-2019sema-ringbrothers1969fordmustangmach1unkl24.jpg>)
*Jeremy Cliff for the Ringbrothers*

Under the long, swooping hood is a Jon Kaase Boss 520-cubic-inch, or roughly 8.5-liter, naturally-aspirated V8 good for 700-horsepower, mated to a beefed-up Bowler six-speed Tremec manual with a QA1 carbon fiber driveshaft. Yes, you read that correctly, this puppy has no turbo- or supercharger attached to it in traditional Ringbrothers fashion. It's a pure auditory delight.

Helping it breathe is a set of Flowmaster headers, Holley carbs, and a custom Flowmaster 44 stainless steel exhaust. And supporting that massive Holley carb arrangement is a high-flow Walbro 400LPH fuel pump by Rick’s Hot Rods.

![message-editor%2F1572984179145-2019sema-ringbrothers1969fordmustangmach1unkl11.jpg](<https://www.thedrive.com/wp-content/uploads/content-b/message-editor/1572984179145-2019sema-ringbrothers1969fordmustangmach1unkl11.jpg>)
*Jeremy Cliff for the Ringbrothers*

![message-editor%2F1572984191046-2019sema-ringbrothers1969fordmustangmach1unkl17.jpg](<https://www.thedrive.com/wp-content/uploads/content-b/message-editor/1572984191046-2019sema-ringbrothers1969fordmustangmach1unkl17.jpg>)
*Jeremy Cliff for the Ringbrothers*

![message-editor%2F1572984200795-2019sema-ringbrothers1969fordmustangmach1unkl18.jpg](<https://www.thedrive.com/wp-content/uploads/content-b/message-editor/1572984200795-2019sema-ringbrothers1969fordmustangmach1unkl18.jpg>)
*Jeremy Cliff for the Ringbrothers*

![message-editor%2F1572984212080-2019sema-ringbrothers1969fordmustangmach1unkl16.jpg](<https://www.thedrive.com/wp-content/uploads/content-b/message-editor/1572984212080-2019sema-ringbrothers1969fordmustangmach1unkl16.jpg>)
*Jeremy Cliff for the Ringbrothers*

![message-editor%2F1572984226523-2019sema-ringbrothers1969fordmustangmach1unkl27.jpg](<https://www.thedrive.com/wp-content/uploads/content-b/message-editor/1572984226523-2019sema-ringbrothers1969fordmustangmach1unkl27.jpg>)
*Jeremy Cliff for the Ringbrothers*

![message-editor%2F1572984285932-2019sema-ringbrothers1969fordmustangmach1unkl21.jpg](<https://www.thedrive.com/wp-content/uploads/content-b/message-editor/1572984285932-2019sema-ringbrothers1969fordmustangmach1unkl21.jpg>)
*Jeremy Cliff for the Ringbrothers*

Under the custom bodywork lies a specially modified Detroit Speed Engineering (DSE) Aluma frame with DSE Quadra-Link rear suspension, RideTech shock absorbers supported by DSE front-sway bars, a John Industries nine-inch 3:55 rear end, a custom DSE rack-and-pinion steering system, and Baer six-piston disc brakes at all four corners. Rounding it out is a set of HSE RS1 Series RS100-61 staggered wheels wrapped in Michelin Pilot Sport 4S's, measuring in at 19"x11" up front and 20"x12.5" at the rear.

The '69 Mustang Mach 1 "UNKL" will be on display at the Flowmaster and Holley booth at the Las Vegas Convention Center. Be sure to check out the Ringbrothers' other concept build, the 1969 Chevrolet Camaro-based VALKYRJA, at the BASF Refinish booth as well.

### Author social links