The KT-4 was the first Kristi
to have an available Chevrolet Corvair engine. Built with
either the 65hp Porsche Marine engine or the 80hp Corvair engine, this
Kristi weighed in at 3080 lbs with a full cab. Seating increased
to 6-8 adults plus the driver; there is seating for two passengers on
each side of the driver in
the front and side facing bench seats in the rear. The engine
was mounted mid-ship and was enclosed to keep all of the working parts
away from the passengers.
The KT-4 vehicle had a 4-belt
track design with standard hickory cleats. The exhaust on a KT-4
exited the rear of the vehicle.
The amphibious KT-4A can be
identified by the following characteristics: the intake and exhaust
ducts exit the top of the vehicle; the tracks on the KT-4A were a
two-belt design with every cleat extending the full width of the
track; and the sides of KT-4A had a rubber skirt that helped to propel
the vehicle in water by preventing water diversion around the track
when in the up most position.