No butterfly steering wheel was a GM option or accessory on a 1954 truck (the only different steering wheels might be the color on deluxe two-tone interior 54/55 trucks).
Please post a link to a photo, it would be interesting to see it.
There was a different standard/factory floor cover for 3-speed, 4-speed, and Hydra-Matic transmissions.
Do you still have an enclosed drive-shaft?
2-bolt covers were not standard equipment in 1954, but it is easy to use them on a 54 and later head with an older valve cover. If you have taken the valve cover off, are there 4 holes in the head around the base of the valve cover?
