1971 and 1972 Dodge Demons.....did all the VIN's

The first L=Dart

The second L is for Low price class which were 318 and /6 Demons and Dart Sports in 73-76
The 340 cars are LM for Dart, medium price class for the 71-72 Demons, 70Darts and 73 340 Dart Sports and 74-76 360 Dart Sports.

The engine code in the VIN for 340 cars is H and the 74-76 360 Cars is L

V=Valiant

Joe