General Motors H platform (FWD)
The H platform, or H-body designates a General Motors front-wheel-drive full-sized car platform introduced in 1986, and in most respects identical to the front-drive C platform introduced for model year 1985. Originally available in both 2-door and 4-door versions — the latter was more popular and two-door models dropped by 1992. Engines were predominantly the Buick's 3.8 liter (231 cubic-inch) V6 engine and later, GM's Buick 3800 V6; in naturally aspirated and supercharged variants (from 1991 to 1999).
| GM H platform (FWD) | |
|---|---|
1986 Buick LeSabre | |
| Overview | |
| Manufacturer | General Motors |
| Also called | H-body |
| Production | 1986–1999 |
| Body and chassis | |
| Class | Large car platform |
| Body style(s) | 2-door coupe 4-door sedan |
| Vehicles | Buick LeSabre Oldsmobile Eighty-Eight Pontiac Bonneville |
| Related | GM C platform GM G platform (FWD) GM K platform (FWD) |
| Powertrain | |
| Engine(s) | Gasoline: Buick V6 |
| Transmission(s) | 4-speed THM440T4/4T60-E/4T65-E automatic |
| Dimensions | |
| Wheelbase | 110.8 in (2,814 mm) |
| Chronology | |
| Predecessor | GM B platform GM G platform (RWD) |
| Successor | GM G platform |
Previously, GM had used the H platform nomenclature to designate the unrelated rear-wheel-drive compact cars. Starting in 2000, all H-body vehicles moved to the G platform, related also to the K platform. GM continued to call it the H platform.