Hemi engine option code is "E74" for both years found on the fender tag. Many Hemi 'cudas also had a second tag with "HEMI FENDER" stamped into it to remind the line workers to grab the right fenders to accomodate the larger F60X15 tires/wheels standard on Hemi 'cudas. VIN also denotes Hemi motor in its code i.e. a '70 Hemi 'cuda coupe= BS23 ROB XXXXXX, where the "R" code is indicative of the Hemi. A partial VIN should be found on the radiator support, usually facing the engine, and on the cowl. Hemi motors were also mandatorily mated to the 26" HD radiator, but other BB could order that option too.
