Oh, you got me started now-----

The first altered I drove was a flathead Ford powered Crosley. The steel body sat on a Ford Model T frame, Model A front end, solid mounted, narrowed Chevrolet rear. The roll bar was fabricated from a steel bed frame. The tubing was 2" in diameter and had nice large radius bends. The only supports the roll bar had was two tube supports going forward to the frame. The center steering(Crosley) was mounted to another loop also made from a bedframe. To get into the car you opened the driver's door and crawled between the bars into the surplus P51 fighter seat. The belts were also surplus airplane harnesses.
The car I describe had run at the 61 Indy nats as a A/Altered coupe with a 402" small block chevrolet. The 402" was obtained by boring a 283" block to 4" and using a 4" welded crank(from 3"). The bad boy had six Strombergs and a Vertex mag on top. I got it and installed the flathead.