HUMMER H1 WALLPAPERS
Hummer H1 SPEC
As far as engines, 5 different engines were available for the Hummer H1. Common knowledge had it that the Hummer H1 ran on a diesel engine, and this was mostly correct. 2 different GM V8 diesel engines were available for the H1: a 6.2 Liter TH400/3L80 diesel 3 speed engine; a 6.5 Liter GM V8 4L80-E four speed engine (also available in a separate turbo). There was also a 6.6 Liter Duramax LLY Allison 1000 five speed which was only available on the 2006 model year H1. In 2002, a 5.7 Liter Vortec 5700 gas V8 engine was introduced as a four speed.