The primary difference is the hemi's dome-shaped (hemispherical) cylinder head combustion chambers compared to the relatively flat or wedge-shaped combustion chambers present in other cylinder ...
Listen and watch one more time as Indy’s Russ Flagle pitches the virtues of the Indy Cylinder Head blown Hemi crate engine in this video from the 2017 Mopar Nats.
However, none of these are as desirable as the Hemi Cuda drop-top. The mighty 426-cubic-inch (7.0-liter) Hemi found its way into 666 Cudas in 1970, but only 14 were convertibles. Nine left the ...