6S400 - Bring A Trailer

[silverton_ford]

Link to auction: https://bringatrailer.com/listing/1966-shelby-mustang-gt350-3-2/?utm_source=Iterable&utm_medium=email&utm_campaign=Model_Update



Auction Description:

This 1966 Shelby Mustang GT350 originally invoiced in November 1965 to Courtesy Motors in Englewood, Colorado, having been specified with standard equipment and optional rear seats. Several warranty repairs were performed by the dealer in 1966, including repairing the speedometer gear and brakes, and it the current owner's family acquired the car in 1976. It is believed to have been repainted in the 1980s, and its 289ci HiPo V8 was rebuilt in 2025. The car rides on 10-spoke alloy wheels and has power-assisted front disc brakes, and headers linked to a side-exit exhaust system. This GT350 is now offered iby the seller on behalf of its owners with a copy of the original invoice, a copy of the SAAC registry entry, a National Shelby Registry certificate, a Shelby Auto American Club certificate, service records, spare parts, and a clean Colorado title.

A copy of the invoice for 6S400 is displayed above, with other supporting documents provided in the gallery.

The car has Wimbledon White paintwork with dual dark blue stripes and GT350 side stripes. It was repainted in the 1980s from what the seller can tell, and chips and areas of bubbling are depicted in the gallery.

The 10-spoke alloy wheels are mounted with Goodyear Blue Streak tires. GT350s were factory-equipped with Kelsey-Hayes front disc brakes as well as larger rear drums than standard Mustangs. The brake lines were replaced in 2025, and older Gabriel dampers are fitted.

The cabin features low-back bucket seats trimmed in black vinyl, and this example was specified with optional rear seats. The latch-and-link belts are shown above.

The steering wheel frames a 140-mph speedometer flanked by an ammeter as well as fuel-level, oil-pressure, and coolant-temperature gauges. A Cobra-branded 9k-rpm tachometer is center-mounted atop the dash. The five-digit odometer shows 3k miles, and records denote that it was repaired by Courtesy Motors early on.

Shelby modified the 289ci HiPo V8 with a cast-aluminum high-rise intake manifold for the four-barrel Holley carburetor as well as headers, a baffled aluminum oil pan, and cast-aluminum valve covers. Advertised output was 306 horsepower and 329 lb-ft of torque.In 2025, the engine and carburetor were rebuilt, the hoses and belts were replaced, and the exhaust system was re-coated.

Power is routed to the rear wheels through a four-speed manual transmission.

SAAC documentation is also displayed in the gallery.

[trotrof1]

If that car could only talk. It might say HELP ME!

[tesgt350]

What does he mean by: "National Shelby Registry certificate"?  Where would he get that?

[trotrof1]

The SAAC vin verification paper work possibly? 150K bid already.

[Coralsnake]

Thats most likely a reference to something created by Shelby American

[Road Reptile]

Normally do not make much about auction cars, but what is with the hood on this car?
Regards R.R.

[SFM6S]

That hood has been on the car ever since I first saw it in the mid 1980's here in CO. It is I believe an aftermarket hood from back in the day. There was also another 66 GT350 that was in the CO area that came from CA and it had a similar hood.

[6S896]

Any information that can be given about this car? Was considering to bid.

[SFM6S]

I'll be away from the computer for a few hours. Will pm you later.
Joe

[Bob Gaines]

That hood has been on the car ever since I first saw it in the mid 1980's here in CO. It is I believe an aftermarket hood from back in the day. There was also another 66 GT350 that was in the CO area that came from CA and it had a similar hood.

Maier racing has been in the Shelby fiberglass business for 55+ years now. They were located in CA in the Bay area for decades but made a move to Idaho. If a reproduction fiberglass hood was procured in the 70's or early 80's it most likely came from them .

[Coralsnake]

Looks like this gave this one a haircut!

Yikes

[trotrof1]

Never make reserve going that direction.

[Vernon Estes]

it is getting close already to what a project missing a VIN is worth full boat retail