This 1971 Ford Mustang BOSS 351 was built June 10, 1971 making it one of the last BOSS 351’s to come off the Dearborn assembly line and into the history books.

This car was special ordered & delivered new to Gagelman Motor Company in Hays, Kansas

The car is in the BOSS 351 registry with solid long-term two owners since new.

The car is finished in Bright Blue Metallic Paint with black accents over a white vinyl interior and is powered by its original matching-numbers 351ci Cleveland V8 paired with its original four-speed manual transmission.

Factory options included:

• Traction-Lok Differential
• F60X15 Firestone Wide Oval Belted Raised White letter Tires
• Sport Deck Rear Seat
• AM 8-Track Stereo Radio
• Tinted glass Complete

This BOSS 351 is now offered with service records from current & past ownership, extensive books, records, paperwork and documentation since new, an Elite Marti report, manufacturer’s literature, a dealer invoice, a build sheet, and title.

Magnum 500 15″ wheels are wrapped in reproduction Firestone Wide Oval RWL tires. The Boss 351 included power front disc brakes and a competition suspension with staggered rear shocks from the factory.

The cabin features an all original interior down to the carpet. The interior package included high-back bucket seats, white vinyl and black accents, bright pedal trim, molded door panels, and camera-finish dashboard appliques.

A two-tone steering wheel with a woodgrain insert fronts an 8k-rpm tachometer, a 120-mph speedometer, and center-mounted auxiliary gauges. The five-digit odometer displays 68,544 original miles, approximately 150 of which have been added by the current owner/seller.

The factory-matching numbers original Cleveland 351ci V8 has never been out of the car. The car went thru a complete bumper-to-bumper in-depth service at our award winning facilities earlier this year. All systems were serviced completely.

Original, unrestored, survivor.

Car was meticulously repainted in 2023 to factory correct specs. The original owner repainted the car black lacquer in 1972 and it remained that color until 2023. All original body panels, never any rust or wreck history.

Power is routed to the rear wheels via a four-speed manual transmission with the factory-installed Hurst shifter through the factory 3.91:1 rear end with a limited-slip differential.

This BOSS 351 has never been advertised to the general public until now. Do not miss this once in a lifetime opportunity to acquire a very rare piece of Ford muscle car history.

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In the pantheon of early Ford Mustang muscle cars, the BOSS Mustang models stand out among the crowd, with the early Trans-Am-spec BOSS 302 and drag-focused BOSS 429 gathering the most attention. But what about the 1971-only BOSS 351, with its big-block-like torque and small-block ability to rev?

Is the one-year-only built BOSS 351 the Goldilocks of BOSS Mustangs?

The BOSS 351’s rating of 330 horsepower was 40 HP better than the BOSS 302’s, though about 45 shy of the BOSS 429’s rating.

For those that want to argue that the BOSS 429 HP was underrated, a fairly common belief, that notion might need the asterisk that relates to the engine’s potential with a race cam, headers, more compression, more carburetion, and a deft hand tuning it.

Bone stock from the dealer was probably a different story.

Even with its “semi-hemi” aluminum heads, the 429-cu.in. V-8 also weighed a lot more all dressed up than the small-block 351.

Magazine test times had the BOSS 351 ripping off 0-60 mph times under 6 seconds and quarter-mile times right at or just under 14 seconds, with trap speeds as fast as 104 mph.

Those numbers are right up there with the BOSS 429 and substantially quicker than the BOSS 302.

The critics loved the new BOSS 351. "The '71 Mustang is a long way from the refined Falcon-based Mustang we all gaped at in 1964, and for that, present Mustang owners can be happy," said Hot Rod in its February, 1971 issue.

"The BOSS 351 is going to salt away a few Z/28s before its season is up." "In the atmosphere of ordinary driving, the BOSS 351 was a real joy," agreed Super Stock and Drag Illustrated in its March, 1971 issue. "Its looks and absolutely unique idle were attention-getters like those of few other cars in recent memory."

- Terry Shea, Hemmings 2021