SHAPING HISTORY.

TECH & HOW TO TECH | DIESEL WORLD MAGAZINE TEXT AND PHOTOS BY MCGLOTHLIN It's the mid 1980s and you're on the hunt for a new ¾-ton or larger truck… The only manufacturers offering diesels are Ford and GM - and while they're torquey, the indirect injection, non-turbo power plants don't quite keep pace with the larger gas engine offerings of the day. Although General Motors' Detroit Diesel-produced 6.2L V-8 was the fuel economy king in the late 80s, Ford's Navistar-built 7.3L engine shown here was the more powerful of the two, and also the better seller. Non-intercooled engines in '89-'91 Dodge trucks were equipped with 4-hole nozzle injectors with a 145-degree spray angle, while intercooled engines ('91.5-'93) would feature 6-hole units with a 155-degree spray angle. That is to say the engine manufacturer took on nearly all the tasks of engineering, designing, and testing its engine within Dodge ¾-ton trucks. [Extracted from the article]