Hi Nacho
The motor in the upper pic has the plastic cover over the wire connections, thats the 73-up style.
Lower one has resin thats the 72-down sytle.
Heres the early 72B/E 534 V-spd.

6982602-DCP_0046.JPG (833 downloads)
72 Satellite Sebring Plus 440, 72 Dart 5.9 4-spd, 68 Valiant, 73 W200, 78 D100 sb, 78 D200, 98 DAKOTA, .
Moparmarks Parts & Restorations
Desert Mopar Metal
Grand Jct. CO
970-261-7039
http://moparmark.com/
motormangj@gmail.com