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'69 Ford Mustang Boss 429, Concours Restored, Numbers Matching, Documented!

1969 Ford Mustang Boss 429 KK1649

It is one thing to own an excellent example of a particular vehicle. This 1969 Boss 429 would be an impressive addition of any automobile collection. It is quite another to own a touchstone to automotive history. KK1649 was purchased new by Willard Kendig, inventor of the Kendig Variable Venturi Carburetor. His son, Martin, recalls when his father jolted him out of bed at 1:00 a.m. excitedly explaining the new design to him. "He was on his way from Los Angeles to Visalia and he goes, 'Marty, I came up with an idea on a carburetor,' and he said, 'this damn thing is so simple, it's hard.'"

Armed only with a metal blueprint, the Kendig carburetor was born. Simple and efficient, by the early 1970's his design contributed many of Dyno Don Nicholson's drag racing wins. It even dominated in speed the speed boat arena, winning the USA 1 competition. Pollution Control Industries procured the Kendig Variable Venturi design and it evolved into the popularly known Predator carbs.

A California car for virtually its entire life, this Boss 429 retains 100% of her original sheet metal and drivetrain. Showing 64, 896 miles on the odometer, Willard drove this car and loved it. Kendig drove the Boss 429 more than most, and understood it more than most as well, using it often to test new design ideas and performance tunes. Legendary for elegant design solutions to sophisticated problems, people couldn't wait to see Kendig's latest and greatest creations. What is more amazing, he was purely self-taught. As his son, Martin, puts it, "He just operated on a different plane of existence than the rest of us."

"He (Willard) tore down his first Model T at 12 years old," said Kendig's son Martin. "And put it back together again. My grandpa almost beat him to death. It was their only means of automotive transportation and Dad dismantled it."

From the very beginning of his long career, he would often race against other speed part pioneers such as SEMA Hall of Fame members Ed Iskenderian and Phil Weiand. This car remained in his possession until his passing in May of 2011. The current owner purchased the car, not long after and completed a Concours restored in 2015, which currently shows 117 miles since built.

Using all original or NOS parts where ever practicable, it is also one of the finest restorations you'll likely see. The entire drivetrain is original, every single body panel is original & solid. The original engine tag, buck tag, multiple build sheets and original factory order invoice are all intact. Even the dash punch out when the radio was installed was found on the floorboard.

Principal Use

Trailered Show Car

Conditional Grade

Like New
99%-100% of New. Previously titled or used by a private owner. Impeccably kept, this vehicle has no discernible mechanical and/or cosmetic problems and has a clean engine bay and chassis.

Overall Originality

Restored Concours

Vehicle has usually been professionally restored to the current highest standard, using a combination of refurbished original parts, exact reproduction parts, and new old stock (NOS) parts. Attention to replicating factory fit, finishes, and marking details are paid attention to. Bare metal finishes may be mimicked with paints and coatings to prevent corrosion. Paint and body may exceed the quality produced by the factory.

SYA's 5 Keys to Investment Collectability

*Owned by automotive engineering legend, Willard Kendig from new to 2011
*California car, 100% original sheet metal
*100% original drivetrain, Engine and Transmission are VIN matching
*Factory Magnesium Valve Covers
*Extensive Documentation, including original broadcast sheets, factor order invoices, and California Licence Plates
*NOS intensive restoration by renown Boss 429 restorer


Engine Type
Engine Size
429-4V Boss
Fuel Specification


Body Color
Black Jade
Body Style
Paint Type




Interior Color
Secondary Interior Color
Seating Type
Buckets With Console
Seat Material
Shifter Type
Center Console
Engine Size
429-4V Boss
Transmission Type
Manual Floor Shift
Body Style
Principal Use
Trailered Show Car
Conditional Grade
Like New
Overall Originality
Restored Concours
Current Location
Ellettsville, IN
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