Buick straight-8 engine

Buick straight 8
Overview
ManufacturerBuick (General Motors)
Also called
  • Fireball Eight
  • Dynaflash
Production1931–1953 Buick City
Layout
ConfigurationStraight-8
Displacement
  • 220.7 cu in (3.6 L)
  • 230.4 cu in (3.8 L)
  • 233 cu in (3.8 L)
  • 235.4 cu in (3.9 L)
  • 248.1 cu in (4.1 L)
  • 263.3 cu in (4.3 L)
  • 272.6 cu in (4.5 L)
  • 278.1 cu in (4.6 L)
  • 320.2 cu in (5.2 L)
  • 344.7 cu in (5.6 L)
Cylinder bore
  • 2.875 in (73.0 mm)
  • 2.9688 in (75.41 mm)
  • 2.9375 in (74.61 mm)
  • 3.0625 in (77.79 mm)
  • 3.0938 in (78.58 mm)
  • 3.1875 in (80.96 mm)
  • 3.3125 in (84.14 mm)
  • 3.4375 in (87.31 mm)
Piston stroke
  • 3.875 in (98.4 mm)
  • 4.125 in (104.8 mm)
  • 4.25 in (108 mm)
  • 4.3125 in (109.54 mm)
  • 4.625 in (117.5 mm)
  • 5 in (127 mm)
ValvetrainOHV
Output
Power output120–168 hp (89–125 kW)
Chronology
PredecessorBuick straight-6 engine
SuccessorBuick Nailhead V8

The Buick straight-8 engine (Fireball 8) was produced from 1931 to 1953 and sold in Buick automobiles, replacing the Buick Straight-6 engine across the board in all models in 1931. Like many American automobile makers, Buick adopted the straight-eight engine in 1931 as a more powerful alternative to the previous engines.