1966 Shelby GT350H

2dr Fastback

8-cyl. 289cid/306hp 4bbl

#1 Concours condition#1 Concours
#2 Excellent condition#2 Excellent
#3 Good condition#3 Good

$147,000*

equal0%
#4 Fair condition#4 Fair

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1965-1970 Shelby GT350 stats
Highest sale
$3,850,000
Lowest sale
$6,050
Most recent sale
$130,408
Sales
1061

Photos

38 photosImages may not reflect selected vehicle.

1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
1966 Shelby GT350H 2dr Fastback Courtesy of Canepa
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Model overview

Model description

By 1965, Carroll Shelby had already established himself and his name as the de facto American performance brand, with cars like the 289 and 427 Cobra regularly trouncing the competition on tracks and at stoplights around the world. So he turned his attention to the Ford Mustang.

Ford wanted to make its already-popular pony car into a fire-breather, and Shelby did just that. He started with white 2+2 fastbacks fitted with the High Performance 289 V8 rated at 271 horsepower, then massaged them with an aluminum high-rise intake manifold, Holley four-barrel carburetor, Tri-Y headers, and a glasspack dual exhaust system to produce 306 horsepower and 329 ft-lb of torque. A Borg Warner four-speed put that power to the rear wheels, and the 2,800-pound car could sprint to 60 mph in about 6.5 seconds, with a top end of 126 mph. Rear seats were replaced with a fiberglass shelf, and all GT350s were fitted with fiberglass hoods and blue rocker panel stripes. Thick racing stripes down the center of the body were optional, as were Cragar mag wheels.

Braking was courtesy of Kelsey-Hayes discs in the front and drums in the rear, and the car was suspended by unequal arms, coil springs, and an anti-sway bar up front, with a live rear axle, multi-leaf springs and tube shocks in back.

An "R" variant—the rarest and most potent GT350—produced 350 horsepower, weighed 75 fewer pounds, and featured an enlarged fuel tank (34 gallon vs. 18) for racing. With special heads, a super-duty suspension, racing tires and more, it was offered in 1965 only.

For 1966, GT350s came in a broader exterior palette, with blue, red, green and black cars offered. Subtle body changes included functional side brake scoops and a special rear quarter panel window, while a SelectShift three-speed automatic transmission was made available. Tops on the options list was a Paxton supercharger, which gave the GT350 stratospheric power. Just a handful of cars were so equipped.

Special production for 1966 included about a thousand GT350H rental cars for the Hertz Corporation. Most were black with gold stripes.

In 1967, Mustangs and thus GT350s bulked up both in size and weight, as well as concessions to interior comfort. Notable changes included twin high-beam headlights mounted centrally in the grille, a larger hood scoop and side brake scoops, rear-quarter scoops to increase interior ventilation, and a rear deck spoiler.

By 1968, Carroll Shelby had lost much of the autonomy he'd enjoyed in creating the GT350, as Ford had gotten more involved in the decision-making process. For starters, production shifted from Shelby American in California to Michigan, where the cars would be built alongside standard production Mustangs. Ford also took over all marketing and advertising.

Twin air scoops graced the leading edge of the hood, but the biggest news was the introduction of a convertible GT350 model, which featured a built-in roll bar. All GT350s now utilized Ford's 302-ci V8, but it was a much-dumbed down version and power was reduced to about 250 hp. While the Paxton supercharger was still an option, GT350s were less about performance and more about comfort, with options like air conditioning, automatic transmission, tinted windows, tilt steering and more available to buyers.

GT350s saw their final year of production in 1969. Regular Mustangs received a thorough redesign that year, and Ford released its own hot versions of the car: the Boss 302 and the Mach 1. GT350s were fitted with another new V8—the 351 Windsor, which produced 290 hp. A few uncompleted 1969 models were finished in 1970 and given 1970 serial numbers, though those cars are for all intents and purposes otherwise 1969 models.

Today, the Shelby GT350 remains an iconic performance machine, easily distinguished from other Mustangs by both performance and valuation.

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Common Questions

The value of a 1966 Shelby GT350H can vary greatly depending on its condition, mileage, options, and history. Typically, you can expect to pay around $147,000 for a 1966 Shelby GT350H in good condition with average spec.

The highest selling price of a 1966 Shelby GT350H at auction over the last three years was $258,500. The highest prices are usually reserved for rare or exceptionally well-maintained examples with desirable features or modifications and excellent history.

The lowest selling price of a 1966 Shelby GT350H at auction over the last three years was $54,723. The lowest prices are usually paid for examples that have extensive maintenance needs, differ greatly from their original configuration, or have accident histories or title problems.

In the last three years there have been 31 1966 Shelby GT350Hs sold at public auction.

The most recent auction sale of a 1966 Shelby GT350H was $187,000 on January 16, 2025 by Mecum Auctions.

Many factors can increase a car's value including excellent condition, exceptional originality, a recent restoration, low mileage, unique provenance, desirable options, popular or unique color choices, and excellent maintenance records. Upgrades and modifications that enhance performance or aesthetics can also add value.

Factors that can decrease a car's value include unusually high mileage, poor maintenance history, visible wear and tear, accidents or damage, title issues, and gaps in ownership history. Additionally, less popular color choices and extensive modifications that don't appeal to a broad audience can reduce value.

Mileage plays a significant role in a classic car’s value. Lower mileage usually increases value because it indicates a higher degree of originality, is rarer, and suggests less wear and tear. However, cars with exceptionally low mileage may also have maintenance needs due to lack of use. Whether someone should pay more for a vehicle with lower miles will depend on how they plan on using it, and the vehicle's specific condition.

The value of modified cars differs widely based on the type and quality of modifications. While some modifications can significantly increase value, especially performance enhancements and high-quality custom work, others may not add much or could even detract from the car’s value if they appeal to only a limited audience.

All prices shown here are based on various data sources, as detailed in About Our Prices. The Hagerty Price Guide is for informational purposes only and is not intended as financial advice. More information on how forecast models are calculated can be found on Forecasted Values page. For additional information and a complete description of benefits, visit hagerty.com/legal. Purchase of insurance not required for membership in HDC. Hagerty, Hagerty Valuation Tools & Hagerty Drivers Club are registered trademarks of The Hagerty Group LLC, ©2025 The Hagerty Group, LLC. All Rights Reserved. The Hagerty Group, LLC is a wholly owned subsidiary of Hagerty, Inc.

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