Clarence, SAL bought these cars from Pullman in 1940-1942 and went on to become SCL (1967-1981) cars wearing road-numbers 819000-819499. These cars were 10' inside height, 40' long. Another difference between them and the PRR cars is the SAL cars and Pullman "Dart Not" ends (the smaller darts seen on the PRR cars).
I would expect any scale car to be bigger than any postwar loco.