GM H platform
The H platform, or H-body, name has been used twice by General Motors. The 1970s H-body was an inexpensive rear wheel drive compact automobile platform from the 1970s. The 1990s H-body was a front wheel drive full-size car platform.
RWD The 1970s H-bodies had 4-, 6-, and 8-cylinder longitudinal GM engines, a solid rear axle, and were unibody. The Chevrolet Vega was designed to use the small-block V8, but this was not approved. Chevrolet Monza was originally designed to use a Wankel engine but this project was cancelled. No H-body had 4 doors, though wagon versions were offered. The fourth character in the Vehicle Identification Number for an H-body car is "H". The platform was introduced with the 1971 Chevrolet Vega and replaced with the GM J platform in 1981. Many vehicles used this platform including the following American nameplates: 1971-1977 Chevrolet Vega/Pontiac Astre 1975-1980 Chevrolet Monza/Buick SkyHawk/Oldsmobile Starfire/Pontiac Sunbird External link The 1980s H-bodies were large front wheel drive cars with a 110.8 in wheelbase. Most H-bodies used GM's large 3800 V6, and supercharged versions were introduced later. The following vehicles used this platform:
See also GM platforms
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