1968 Ford Mustang Shelby GT500 KR Paper Model
Beginning in April 1968, Ford began factory installing a version of the 428 engine known as the "Cobra Jet". The GT 500 was subsequently known as The GT 500-KR. The initials KR stood for "King of the road." Ford rated the Cobra jet at 335 horsepower (250 kW), but with 440 foot-pounds of torque at 3400 RPM, the horsepower was considered significantly underrated. Shelby's KR engine was left stock adding die-cast aluminum valve covers with "Cobra Lemans" to note Ford's FE engine family victory over Ferrari at Le Mans in 1966 and 1967. Paper model from Blue Springs Ford Parts website.
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