18 hours ago, Rusty_OToole said:Special, Super, and Century used the B body shared with Olds. Roadmaster used the C body shared with Cadillac.
In other words body parts from a Roadmaster will not fit the other models.
That's not correct for the hardtop. Super and Roadmaster had the same body. The newly intruduced V8 in the Super and Roadmaster series in '53 had the same size, the Roady of course more juice. But the need for a longer hood was gone.