Chevrolet 90° V6 engine
The Chevrolet 90° V6 family of V6 engines began in 1978 with the Chevrolet 200 cu in (3.3 L) as the base engine for the all new 1978 Chevrolet Malibu. The original engine family was phased out in early 2014, with its final use as the 4.3 L (262 cu in) V6 engine used in Chevrolet and GMC trucks and vans. Its phaseout marks the end of an era of Chevrolet small-block engine designs dating back to the 1955 model year. A new Generation V 4.3 L (262 cu in) V6 variant entered production in late 2013, based on the LT1 small block V8 and first used in the 2014 Silverado/Sierra 1500 trucks.
| Chevrolet 90° V6 engine | |
|---|---|
| Overview | |
| Manufacturer | General Motors |
| Production | 1978–2014 |
| Layout | |
| Configuration | 90° V6 |
| Displacement | 200 cu in (3.3 L) 229 cu in (3.8 L) 262 cu in (4.3 L) |
| Cylinder bore | 3+1⁄2 in (88.9 mm) 3.736 in (94.9 mm) 4 in (101.6 mm) |
| Piston stroke | 3.48 in (88.4 mm) |
| Cylinder block material | Cast iron |
| Cylinder head material | Cast iron |
| Valvetrain | OHV 2 valves × cyl. |
| Compression ratio | 8.2:1, 8.35:1, 8.6:1, 9.1:1, 9.2:1, 9.3:1 |
| Combustion | |
| Turbocharger | Mitsubishi TD06-17C with Garrett Water/Air intercooler (on GMC Syclone and Typhoon only) |
| Fuel system | Rochester 2- Dualjet or 4-bbl. Quadrajet carburetors Throttle-body fuel injection Multi-point fuel injection |
| Fuel type | Gasoline |
| Cooling system | Water-cooled |
| Output | |
| Power output | 94–280 hp (70–209 kW) |
| Torque output | 154–360 lb⋅ft (209–488 N⋅m) |
| Dimensions | |
| Dry weight | 450 lbs |
| Chronology | |
| Predecessor | Chevrolet Turbo-Thrift engine |
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