1985-up: AM General M988 HMMWV
The AM General M988 was the first in a line of military vehicles that captured America’s imagination and stood on the front lines of the nation’s defense. Designed and built to be a military vehicle, it was one of the few military vehicles to go civvy rather than the other way around. Starting in 1992 the Hummer (later known as the H1) went on sale and was built into 2006. The powerplant came from General Motors, the DDA 6.2L diesel V8—none other than the light truck 6.2L V8 diesel with a few special additions and nonemissions tuning. In the ’90s a non-turbo version of the 6.5L diesel replaced it. Though replaced in GM trucks after 2000, the 6.5L remains in production just for these applications.
DISPLACEMENT: 6.2L (379ci), 6.5L (395ci)
POWER: 150 hp @ 3,600 rpm/160 hp @ 3,200 rpm TORQUE: 259 lb-ft @ 2,000 rpm/
290 lb-ft @ 1,800 rpm
COMPRESSION RATIO: 21.3:1/20.2:1 ASPIRATION: Natural
Unknown year M988 HMMWV
6.5L NA diesel