The Street Prototype made its restored debut at the 2014 Amelia Island Concours in March 2014, and went on to tour some of the biggest shows in the U.S. during the summer. Some of our readers no doubt saw it at the 50th anniversary in Charlotte, the Mid America Ford and Shelby Nationals, SAAC 39, or others. The quality of the restoration was proven with Gold awards at each stop, and yet expert judges such as Jeff Speegle, Bob Perkins, Bob Gaines, and Brant Halterman all offered important input that was incorporated, and made 003 even more accurate each time it was displayed. The Street Prototype’s show tour was largely completed during 2014, but you can still catch up with it at the Monterey Motorsports Reunion this August, where the G.T. 350 is the featured marque in honor of its 50-year anniversary. 5S003, 5R002, and many other great Shelby Mustangs will no doubt be in attendance, with many being wrung out for all they're worth. We can hardly wait!
Engine
Northwest Ford expert Dave Bliss built the Shelby-ized Hi-Po 289 to stock specs, using a block and heads dated August 1964. Sharp eyes will notice a couple of unique features in 003’s engine compartment. 1. This is believed to be the only street G.T. 350 to roll out the doors of Shelby American with a stock Mustang two-piece export brace. A period photo shows 003 with the two-piece brace, even as it was being prepared for public sale in May of 1965. Chuck Cantwell discovered the export brace during an early tour of Ford’s San Jose assembly plant, and specified its use—but evidently after 003 was already finished. 2.Only the earliest G.T. 350s used the tall 427-sourced air filter such as this one, N.O.S. of course, as it’s believed the height caused the air cleaner lid wing nut to tear the screen covering the fresh air hole in the hood. The shorter Hi-Po 289 filter became the standard instead.
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Transmission
Production 1965 G.T. 350s used an all-aluminum case T-10 four-speed, a rare find today. While the Street Prototype’s original drivetrain was long gone, Hovander was able to find an October 1964 six-bolt aluminum case, but you’ll notice a cast-iron tailshaft housing. This is because original owner Bill Moir stated 003’s transmission was configured this way when he bought it in July 1965. The idea that it was built this way doesn’t seem farfetched in that original pictures of 002 show its transmission was of the same aluminum/cast iron construction, and it’s known that Cobra race cars ran an iron tailshaft housing since the aluminum versions were prone to breaking.
Gauge Pod
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Promotional photographs of 003 sometimes show the car prior to installation of the ’65 G.T. 350’s unique dash-mounted gauge pod, while other photos show the pod with prototype gauges. The oil pressure gauge is of unknown origin, while the tach was clearly just a paper face. Of course this unique arrangement was part of 003’s restoration, and here we compare it to the production G.T. 350 pod gauges (on the right), with their CS logo faces.
Steering Wheel
Compare the prototype steering wheel center cap on 003 (on the left), to the production version (on the right). Early photographs clearly show 003 with a hand-built assembly that used a Cobra hood emblem. Long lost through the years, Hovander conspired with original owner Bill Moir and Cobra enthusiast Dan Case to recreate the prototype. Moir made the black centercap per original photos and his memory, and Case provided a pristine original Cobra hood ornament.
Wheels
These photos illustrate a number of the detail differences between the Street Prototype (top), and a production ’65 G.T. 350 (bottom). The Cragar wheels on the passenger side of 003 look very much like the 15x6s that were optional on ’65 G.T. 350s, but the truth is that they’re unique prototype versions, such as were on the Street Prototype during early Shelby promotional images. Among several differences, the most visible is in the lug web area, with the prototype wheels being cast with more material to allow for drilling a variety of bolt patterns. Once approved for production, Shelby specified a slightly smaller web area for use with Ford’s 5-on-4.5 pattern. Three of the prototype wheels were acquired from Craig Conley who is considered the guru of the genre, having restored nearly 2,000 Shelby Cragars over the last 25 years. Conley reports that these three wheels (the third on the rear package tray) are the only prototype examples he’s ever encountered. Also seen here are the differences between the plain centercaps that were fitted to 003’s prototype wheels, and the Peter Brock designed CS logo cap that went into production. Also notice the OE Goodyear Blue Dot compared to the blackwall Power Cushion, as well as the hand painted G.T. 350 rocker logo versus the production 1965 decal.
Trunk Lid
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The metal throughout 003 was surprisingly original and rust free, just modified in a few areas. An example is the rear wheel openings, which had been radiused for tire clearance years before. This three-frame-sequence (before, during, after) shows the process Dave Mackey performed in restoring the original lip, keeping the original quarter and splicing in a lip from a donor Mustang. The end results are perfection.
Another area of repair that reveals Mackey’s expertise was in the C-pillar, where the original louvers had been removed and the supporting structure hacked away. All replacement metal was date-correct original Ford.
Typical of many vintage Mustangs, the front subframe rails were noticeably damaged from years of jacking the car at these locations. Check out these before and after shots of the passenger side framerail. Amazingly, the original sheetmetal manufacturer’s stamp is still on the framerails after all the paint and primer were stripped away.
Early magazine ads showed the Street Prototype from a couple of different angles. It’s been determined that these photos were shot at Benedict Canyon in the Hollywood Hills, near Shelby’s Venice, California, headquarters.
MUMP-150600-GT-33
Suspension detailing and components on 003 are per MCA Thoroughbred standards, and reflective of John Brown and his crew’s exacting work. The Koni shocks are from the first known batch made for Mustang applications, dated 11-1964.
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At the start of the restoration, Hovander worked hard to understand what holes in the engine compartment were factory (Ford or Shelby), versus what holes came during years of enthusiastic modification. He sent this image around to different experts in the field, to solicit valuable input on what holes needed to be eliminated.
What’s With The Corvette Tires?
Finding parts for any 50-year-old car will be a challenge, but part of the challenge with the Street Prototype were the unusual parts—one-offs and abnormal pieces that are part of a vehicle’s initial development process. Hovander tells an interesting story about the original tires on 003, which is thought to be the only ’65 street car not to be fitted with Goodyear Blue Dots. You may recall that the Blue Dot was a high-performance tire in Goodyear’s Power Cushion line, and the OE tire for the ’65 G.T. 350. However a study of vintage Street Prototype photos led Hovander to the realization that the car was originally fitted with standard blackwall Goodyear Power Cushions, probably because the Blue Dots were just in the process of being produced. So where would one find a set of N.O.S. 15-inch Power Cushions, a diameter that wasn’t all that common in 1965? Hovander determined that certain base model Corvettes were fitted with this very tire, so he joined a national Corvette forum and placed a wanted ad. A full year later, Hovander was contacted by a Corvette enthusiast who was selling a pristine set of the proper original Power Cushions on a set of aluminum Corvette knock-off wheels. Hovander talked the owner into separating the wheels and tires, “I told him the tires were going on a ’65 coupe. I just didn’t say what kind of coupe, as I was afraid he might not sell them to me if he learned the car wasn’t a Corvette” chuckles Hovander, now after the fact. Another irony related to tires and 003, is the fact that the car was used in a period Goodyear ad for the new Blue Dots, despite never wearing them.
Many Thanks
Owner Mark Hovander is grateful to the close-knit Shelby Mustang community, for the many people who helped in one way or another with the restoration of the Street Prototype. Former owners, fellow enthusiasts, show judges, and complete strangers responded to Hovander’s search for specific information, components, photographs, and memories, all of which were integral to bringing 003 back together in spectacular fashion.
Information Overload
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Those who finish this story and still find themselves wanting to learn more about 003 and other ’65 G.T. 350s, should check out www.1965gt350mustang.com. This website is a work in progress, and authored by Mark Hovander and other early G.T. 350 enthusiasts. It’s a great place to immerse yourself in all the gory details of the earliest Shelbys.
Chuck Cantwell
When Sam Smith of Ford’s Special Vehicles Department was seeking a Project Engineer for Shelby American’s development of the “Cobra Mustang,” he encouraged his friend Chuck Cantwell to apply. Cantwell was working for GM Styling and involved in SCCA racing in the Detroit area at the time, and Smith figured the Shelby job would be a good fit. Apparently Carroll Shelby and his general manager Peyton Cramer came to the same conclusion, for in the late summer of 1964, Cantwell was hired to head the G.T. 350 program. Cantwell’s leadership helped the Shelby Mustang to big successes in both competition and sales realms, winning three consecutive B/Production championships, and growing the initial 562 production units in 1965 to over 3,000 by 1967. Cantwell was also a key figure in Shelby’s participation in the Trans-Am series, and beginning in 1966 was team Project Engineer for the endeavor. He moved over to Roger Penske’s Sunoco-sponsored Camaro team in 1969, where he served as team manager, continuing in that role with Penske for the Javelin program in 1970-1971.
Peter Brock