Because of a loophole in the emissions regulations the 1978 Dodge Li'l Red Express Truck's did not have catalytic converters what the Li'l Red Express did have was a special High Performance 360 C.I.  4-barrel small block engine code (EH1) which was a modified version of the 360 police engine (E58) producing 225 net horsepower @ 3800 RPM. The package also included Hemi style mufflers with a crossover pipe breathing through 2 chrome stacks located behind the cab, a special 727 transmission and 3.55:1 rear gearing.

The 1978 Dodge Li'l Red Express Truck rode on GR60x15 raised white letter tires on 7-inch Chrome wheels up front and LR60x15 on 8-inch chrome wheels on the rear and there was no spare included. All 1978 Dodge Li'l Red Express Truck's were automatics the interiors were available with a standard bench seat in red or black or with optional buckets and a fold down arm/rest console which was available both years. 1978 and some early 1979 Dodge Li'l Red Express Truck's used the "tuff" steering wheel.

The Dodge Li'l Red Express Truck was a hit with dealers and public 2,188 were produced in 1978 making these truck's very sought after and very valuable these days.