Altered (drag racing)

Altered is a former National Hot Rod Association (NHRA) drag racing class and a current drag racing chassis configuration that forms the basis of many classes of NHRA Competition Eliminator.

The altered is "[s]ometimes called the poor man's [d]ragster". While the emblematic altered is a short-wheelbase roadster with exposed engine and front frame rails, very similar to the earliest rail dragsters, altereds can be bodied cars also.

By definition, altereds were essentially stock gas, alcohol, or nitromethane-class cars with parts removed or changed, making them ineligible for the previous class, such as Keith Ferrell's Dogcatcher, a 1936 Willys sedan delivery; built as a gasser, Ferrell deliberately left something off to run it in B/Altered.