Ford Model T engine

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Ford Model T engine
Engine bay of a Model T
Manufacturer Ford Motor Company
Production 1908-1941
Displacement 177 cu in
(2896 cc)
(2.9 l)
Cylinder bore 3¾ inches (95.2 mm)
Piston stroke 4 inches (101.6 mm)
Valvetrain side
Cooling system water
Power output 20 hp (15 kW)

The Ford Model T used a 177 cu in (2.9 L) 4 cylinder engine producing 20 hp (15 kW) for a top speed of 45 mph (72 km/h). The engine had side valves and 3 main bearings and was built in-unit with the Model T's novel transmission, sharing the same lubricating oil. Engine bore was 3¾ inches (95.2 mm) and stroke was 4 inches even (101.6 mm) for a total displacement of 177 cubic inches (2896 cc).

The Model T engine was produced continuously from September 27, 1908 through August 4, 1941, exactly 12,000 days. This makes it one of the longest engines in series production[citation needed], especially considering that the specifications remained mostly unchanged for this entire duration. The following changes were made over the years:

  • 1909 — Water pump was discontinued; subsequent Model T engines used thermosyphoning to circulate the coolant.
  • 1910 — Valve covers were added
  • 1917 — Higher heads with larger water jacket
  • 1919 — Engine starter introduced
  • 1920 — Lighter-weight rods and pistons
  • 1922 — The cylinder casting was changed so a single valve cover could be used
  • 1926 — An extra boss was added at the rear for an additional transmission bolt
  • 1927 — The carburetor throttle rod was re-routed over the engine

The Model T engine was on the Ward's 10 Best Engines of the 20th Century list.


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