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1968 Shelby Cobra GT-500 427 Road Test Specs - Speed & Supercar Magazine p.62

1968 Shelby Cobra GT-500 magazine road-test spec sheet (S&S Test Specs)
1968 Shelby Cobra GT-500 magazine road-test spec sheet (S&S Test Specs)Original file
1968 Shelby Cobra GT-500 magazine road-test spec sheet (S&S Test Specs)

Reference · 1964-1973 MustangAll 42 brochures & literature

1968 Shelby Cobra GT-500 427 Road Test Specs - Speed & Supercar Magazine p.62 Vintage Robie Ford ad for 427 Wedge-Powered Mustangs with front view of a Mustang Car Craft magazine page with 428 Cobra Jet article text, Schiefer clutch ad and Crane cams ad 1968 Ford Mustang 428 Cobra Jet - Hubert Platt SS/E Winternationals Article 1968 Shelby GT500-KR Road Test & Specs - Hot Rod Magazine November 1968 American Autowire Classic Update Wiring Kit Unboxing - 1968 Ford Mustang Bill Stroppe Baja Bronco Order Form - Ford Bronco U15 Package & Pricing Save Johnson Valley Fun Ride Flyer - Dec 13-14 2008, Cougar Buttes OHV Event Coyote Wash 200 Night Race Drawing Party Flyer - ORW Escondido, June 7th 1968 Mercury Cougar 390 GT Muscle Machines Drive Report - Specs & History Robby Gordon Angry Over 2008 Dakar Rally Cancellation - USA TODAY Article 2007 Baja 1000 Drawing Festival Flyer - 40th SCORE Baja 1000, Lake Elsinore 42brochures & literature1964-1973 Ford Mustang More reference Marti Report for a 1969 Mustang Mach 1 Sportsroof 428 CJ Ram Air with door data plate decodeSpec plate 1968 Shelby GT500 & Ford 427 Tunnel Port Article - Speed & Supercar p.67Manual page 1973 Mustang Trans-Am Upper A-Arm Limiter Blueprint - Maier Racing (1979)Blueprint Electric Heat Air Handler Wiring Diagram B17576-02 - 208/230V Schematic & NotesWiring diagram Mustang Monthly how-to article on replacing a cowl panel with numbered welding step photos and parts sourcesService procedure Ford DOHC Competition Engine Longitudinal Cross Section Diagram - Figure 21Schematic Ford H.E.G.O. O2 Sensor Harness Diagram M-12071-D302/H302: Connectors & WiresExploded parts Ford Mustang 5.0 Vacuum Line Routing Diagram - EGR, Thermactor & EVAP HosesVacuum routing Ford Mustang Fox Body Fuse Box Diagram - Fuse Panel Layout & Fusible LinksFuse chart

Magazine test-spec page for the 1968 Shelby Cobra GT-500: 427 V-8, 600 CFM Holley quad, Ford Select Shift, 3.50:1 axle, 0-60 in 6.0 sec, 14.20 quarter-mile.

Part of 1964-1973 Ford Mustang Brochures & Literature

AI caption · Photo 33 of 66

This is page 62 from Speed & Supercar magazine, part of a road test article titled "Shelby's Sophisticated Supercar" covering the 1968 Shelby Cobra GT-500. The page contains an "S&S Test Specs" panel listing full test data: a 427 cubic inch V-8 with 11.5-to-1 compression, 400 hp @ 5600 rpm, 460 lb-ft torque @ 3200 rpm, a 600 CFM Holley quad carburetor, Ford Select Shift transmission, standard differential with a 3.50-to-1 gear ratio, 0-60 mph in 6.5 seconds, quarter-mile at 100 mph in 14.20 seconds, 130 mph top speed, 10/13 mpg fuel consumption, 3480 lb test weight, 108 in wheelbase, 186.81 in overall length, unitized frame, disc/drum brakes, 325 sq. in. swept area, and 15-inch Goodyear tires. The article text discusses traction problems due to lack of a limited-slip differential, wheel-hop from leaf spring wrap-up, the C-6 automatic's behavior, and the compromise suspension setup with heavy-duty shocks, coil springs and a fatter stabilizer bar. It notes Ford won't offer a locker until '69 or '70 and recommends a Detroit Automotive locker and traction bars. Photos show the Goodyear E-series 15-inch tire/wheel and a rear view of the car. Article continues on page 67.

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Frequently asked questions

What engine did the 1968 Shelby Cobra GT-500 test car have?
A 427 cu. in. V-8 with 11.5-to-1 compression, rated 400 bhp @ 5600 rpm and 460 lb-ft torque @ 3200 rpm, fed by a 600 CFM Holley quad carburetor on premium fuel.
How fast was the 1968 GT-500 in this test?
0-60 mph in 6.5 seconds, quarter-mile at 100 mph with a 14.20 second elapsed time, and a top speed of 130 mph.
What transmission and gear ratio did the test car use?
A Ford Select Shift (C-6 automatic) with a standard (non-limited-slip) differential and a 3.50-to-1 gear ratio.
What fuel economy did the GT-500 get in the test?
Fuel consumption was 10/13 mpg.
What traction problems did the article note?
Limited slip rears were not available with this combo, so the car burns one tire off the line; the stock leaf springs wrap up around the axle causing wheel hop under hard launches. The article suggests a Detroit Automotive locker and Super-Bite-style traction bars.

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