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A H2 is bigger and uses a Vortec 6.2L V8 engine 393 hp @ 5700 rpm cast aluminum block and cylinder head and is considered a fullsize SUV considering it is based on a Chevrolet Tahoe chassis. The H2 also comes in a truck form called the H2 SUT. The H2 is 81.2 inches wide and 79.2 inches high.

A H3 is a midsize SUV with a Vortec 3.7L Inline-5 engine 242 hp @ 5600 rpm cast aluminum block and cylinder head based on the Chevy Colorado and GMC Canyon pickups. The H3 is 85.6 inches wide and 73inches high. The H3 is registered as a car.

AnswerHUMMER H2 is built in Non-GM Plant called AM General where they build the military Hmmvee Vehicles (H1) Mishawaka, Indiana

HUMMER H3 is built in a GM Plant at shrevport, Louisiana. They are in the same assembly line as the "Colorado" Trucks. The major difference is the "Body".

The H3 SUV is also th first HUMMER to be manufactered in Right Hand Drive (RHD).

the hummer h3 goes 180kph while the hummer h2 goes 220kph

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14y ago

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