Paul found this unique snow cat made from Kaiser parts. It appears to me to be a CJ-5 body with hardtop combined with a custom FC-looking cowl (with some buck teeth as a grille). There were only two KT-4G models made.
According to the Kristi Snowcat website, “This new vehicle, named the KT-4G, was designed with the aim to reduce costs by maximizing use of standard automotive parts. Kaiser Jeep supplied the CJ-series universal frame and body, while power was delivered by a Chevrolet 6-cylinder engine mated to a Clark four-speed transmission and steering differential. The new Chevrolet engine was water-cooled, allowing for a car-like heating system.”