The Mustang, introduced in 1964, was a big hit among car enthusiasts. But it's the ultra-rare 1968 Shelby ... 428 engine, aka Cobra Jet, on the GT500. It was subsequently called the Cobra GT500 KR.

1968 was a great year for the Shelby Mustang ... non-KR version of the 1968 GT500. It offered 400 hp and 460 lb-ft (405 PS, 624 Nm) – but it wasn’t cheap, at $247. The 428 Cobra Jet ...

The car, dubbed the KR ... for its Cobra Jet advertising campaign. See All 7 Photos On April 1, the 428 Cobra Jet was introduced to the world as a new 335hp performance option for the Mustang ...

Conservatively rated at 335 horsepower, the 428-cubic-inch Cobra Jet engine was, at the time, the biggest displacement production powerplant ever fitted to a Mustang. See All 12 Photos By the late ...

So he built his own hot-rod Mustang using Ford parts that he had on the shelf. The Tasca KR-8 was ... The 428 Cobra Jet Mustang was born. Eric Dahlquist's engine photo shows the 427 Tunnel Port ...

There it was designated EXP500 and fitted with a 428-cubic-inch Cobra Jet engine ... the end of the project—another Shelby prototype, the "Little Red" Mustang notchback, was only recently ...

Just in time for Shelby fans comes the next big event, and it's in Plainfield, Indiana this weekend: the auction of an unrestored 1968 Shelby Cobra Mustang GT500-KR ... 428 cubic-inch Cobra Jet ...

Those who could usually opted for the Shelby Mustang ... Motor Company put the KR-8 engine into production. It was installed in the ‘68 Mustang as the 428 Cobra Jet. In a full-circle experience ...

Watch as host Bud Lindemann heaps praise on a (then) brand new 1968 Shelby Mustang 500KR after giving ... the 1968 Shelby had at the time. The 428 Cobra Jet V8's 360hp were the "fangs of the ...

In 1967, the New York auto show played host to the launch of the original GT500KR, a version of the Shelby Mustang powered by a 428-cubic-inch Cobra Jet V-8 rated ... the 2008 KR outdoes its ...

Ford Motor Co. continues to bolster its Mustang lineup—how ... a nostril-flaring beast dubbed KR for "King of the Road." The original had a Cobra Jet 428-cubic-inch engine, a live rear axle ...