In 67, the clock was standard equipment for the SS, Malibu,and Concours. It was extra in the Chevelle 300 and 300 Delux. Oil pressure, temp and generator warning lights, not gages, were also standard on all models. The center console was only available (RPO D55)in the SS and Malibu (4 speed, powerglide or turob hydra-matic trans) when the bucket seat option was selected (RPO A51)
In console equiped SS and Malibus the clock moved from the dash to the console, regardless of instruments. When optional gages (RPO U14) were used the clock moved to the floor, regardless of shifter location. It is possible to have a bench seat SS with a column shift turbo hydra-matic, with optional gages and have the clock floor mounted.
Bottom line you will find clocks in the dash, in a console or on the floor in 138 cars.