1968 Ford Shelby Cobra Mustang
GT 500 KR
”King of the Road”

• Full frame-off showroom correct restoration
• Factory correct 428 Cobra Jet engine
• Custom Cobra alloy wheels and Cooper Cobra tires
• 42 years of same family ownership
• <500 miles on rebuild
• Clear title and ownership
• Bucket seats, rollbar, racing belts, flip-down rear seat
• Custom jet black paint
• Total production – 1251. Total know to exist – 480.
For more information or to see and drive this one-of-a-kind original, please contact John Heer at (208)227-9000 or (208)390-2710 or email at #####@####.###


The \\\'68 GT 500 KR was a very special car. Many modifications were made to the stock GT Mustang. The 428 was the same Cobra Jet engine offered in the stock big block Mustang. It was the old 428 block with a lot of changes. The low riser, revised, 427 heads had huge rectangular ports. Measuring 2.34\\\" X 1.34\\\", the ports were larger than the 427 racing heads. A special dual-plane intake manifold held the mammoth Holley carb. Stronger connecting rods and crankshaft replaced the stock 428 pieces. This Shelby Cobra could do serious damage to a set of tires and you could have a lot of fun in the process!
Dished alloy pistons were used with eyebrows, attached to con rods with full floating pins locked in with two retainers. This lowered the compression ratio to 10.7 to 1. Pop-up pistons were available for drag racers. The KRs all received heavy duty front and rear shocks, the four speed cars got staggered rear shocks, power front disc brakes and power steering and big capacity rear drum brakes.
Styling was a definite departure from the standard Mustang. The entire front end was more aggressive in appearance. More scoops and spoilers covered the rest of the body. One of the most memorable design additions to this model was the large scoop on the rear pillar. With all of the intake scoops on the top and sides, this car looked thirsty for air. A wind split crease ran down center of the roof and trunk like a protruding spine. A very nice touch. The sequential taillights were from a 65 T-bird and ran full width across the rear panel. Aluminum cast 10-spoke wheels were aggressive and dead serious race equipment from Shelby. This car oozed performance. This Shelby Cobra with a 428 Cobra Jet was a factory built hi-performance muscle car.

The interiors were fairly basic equipment for Mustang. However, in the special console you would find the Stewart Warner gauges for oil pressure and amps. The speedo went all the way to 140 mph and the tach topped out at 8000 rpm. Just to remind you that you were in a Cobra, a coiled snake was embossed into the center armrest.

Ford did not promote the increase in horsepower that the Cobra Jet engine had. It was advertised at 335 horses. That figure was low by at least 20%. Remember - during those years the insurance companies had started to penalize high horsepower cars. In fact, those years were the beginning of the end of cars like the GT 500 KR. Total production of the KRs was 933 Fastbacks and 318 convertibles. Of those 1251 cars, only 480 are known to exist today.

This particular Shelby Cobra is owned by a local family in Idaho Falls and has been in that family since the day it rolled off the showroom floor. It recently received an extensive and complete, frame-off restoration by Brint Freeman of Classic Cars in St. Anthony, Idaho. This all original, one-of-a-kind muscle car is a ton of fun to drive and leaves no doubt as to why it is still referred to as the “fastest production car of it’s era”!