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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.1 1970s
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 platformThe J platform or J-body was General Motors' inexpensive front wheel drive automobile platform from the 1980s and 1990s. The platform replaced the GM H platform. The first J-body car was the Cavalier, which was released on March 21, 1981. The Cavalier was in 1981.
Many vehicles used this platform including the following American nameplates:
- 1971-1977 Chevrolet Vega/ Pontiac Astre
- 1975-1980 Chevrolet Monza/ Buick SkyHawkThere have been two small cars from Buick called the SkyHawk or Skyhawk 1975-1980 RWD Chevrolet Monza clone ( H-body) 1982-1989 FWD Chevrolet Cavalier clone ( J-body) SkyHawk Front wheel drive vehicles Rear wheel drive vehicles./ Oldsmobile Starfire/ Pontiac SunbirdThere have been two different vehicles bearing the name, Pontiac Sunbird . 1970s The 1975-1980 Sunbird was a version of the Chevrolet Monza RWD coupe on the GM H platform. 1980s and early 1990s The 1983 Sunbird is a compact car that was first produced as
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2 1980s
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:
3 See also
H
