I know that this an old post, but I think that I just came across a set of 14x6 Hemi wheels made by Kelsey.

2nd pic

Valve stem

66-67 Hemi width wheels were 14 x 5.5 (not 14 x 6.0)

Mid 50's and late 50's full sized Chrysler's, Plymouths, and DeSoto's used the exact same looking 14" x 5.5" and 14" x 6" rims with the 10 holes and one of the small holes has the squared slot. Some of the rims had the 3 nubs for dog dish center hubcaps and some rims did not. They look exactly like the above pics.

66-67 Hemi width wheels were 14 x 5.5 (not 14 x 6.0)
does include Wo an ro cars

I am sure that is true, but what I said before but I did not properly describe was both 5.5" and 6.0" width wheels were used back then . I think different models used different widths. Look on the forwardlook site, They have a category on tires and wheels and there are a few discussions there about the different wheels.

After talking to some different people, I believe that these 14x6 wheels were original equipment on a 67 Belvedere II station wagon.

1967 B-bodies had 14x5.5" as the largest wheel. They also had only one extra small hole, not 10 like your shows.

In 66 67 and 68 14x6 wheels were on C-body's.

1966 Hemi cars, B-body station wagons, and possibly B-body 383 cars came with the same 14 x 5.5" wheels. No 14 x 6.0 wheels came on 66 B-body cars. These wheels had 10 holes.

The same wheels were used on 1967 Street Hemi cars (as the standard steel wheel) and were also used on:

67 B-body wagons
67 440 (and Hemi) Chargers
67 GTX's
*And possibly on some other 383 equipped B-body cars

The 67 Wheels were 100% identical to the 66 wheels but only had 6 holes, 5 lug holes and 1 axle pin hole. It is possible that some early 67 cars got the 66 10 hole wheels but I have never seen a proven original that came this way.

After March of 1967 these wheels had stamped in date codes, there were no visible date codes on earlier versions.

.02

*Pics are of a matched set of 67 Hemi wheels dated 3-31 (March 31, 1967). the black wheel is single 67 Hemi wheel (the spare) from a different car spd'd November 1966.