...except Hemi was different. Early Hemi had the distributor in the back, 426cid Hemi had the distributor in front.
Chrysler early Hemi displacements: 331, 354 and 392cid
DeSoto early Hemi displacements: 276, 291, 330, 341 and 345cid
Dodge early Hemi displacements: 241, 270, 315 and 325
Check...