NHRA Top Fuel uses a Hemi?

The engine used to power a Top Fuel drag racing car follows the basic layout found in the second generation Chrysler Hemi 426 "Elephant Engine" made from 1964-71. Although the Top Fuel engine is built exclusively of specialist parts, it retains the basic configuration with two valves per cylinder activated by pushrods from a centrally-placed camshaft. The engine has hemispherical combustion chambers, a 90 degree V-angle; 4.8 in. bore pitch and a .54 in. cam lift. The configuration is identical to the overhead valve, single camshaft-in-block "Hemi" V-8 engine which became available for sale to the public in selected Chrysler Corporation (Chrysler brand) automotive products in 1950 (model year 1951).


They all use a Hemi?