Jeep · Super Hurricane Six
Jeep 226 Super Hurricane
The Continental-derived flathead six that gave Willys wagons, pickups and FC trucks heavy-duty torque.
226.2
Cubic inches
The 226 provided Willys utility vehicles with substantially more torque than the four-cylinder engines.
Displacement
226.2 ci
Bore
3.3125"
Stroke
4.375"
Years
1954–1963 Jeep/Willys use
Key Takeaway
The 226 Super Hurricane was a large L-head inline-six with a 4.375-inch stroke and 226.2 cubic inches. Its long-stroke geometry and flathead layout emphasized low-rpm torque and smooth utility-vehicle operation rather than high-speed breathing.
Technical Specifications
- Compression
- 6.86:1
- Horsepower
- 115 hp gross early; 105 hp later
- Torque
- 190 lb-ft @ 1400–1800 rpm
- Architecture
- L-head inline six
- Block
- Cast iron
- Cylinder heads
- Cast iron
- Valvetrain
- Side-valve L-head
- Aspiration
- Naturally aspirated
- Fuel delivery
- Carter one-barrel carburetor
- Main bearings
- 4
The 226 Super Hurricane was a large L-head inline-six with a 4.375-inch stroke and 226.2 cubic inches. Its long-stroke geometry and flathead layout emphasized low-rpm torque and smooth utility-vehicle operation rather than high-speed breathing.
Internal Specifications
Variant-specific values are labeled. Engine families that span multiple years or RPOs can have different heads, cams, induction and rotating parts, so the exact code/year always takes priority.
Notable Applications
Strengths
- 190 lb-ft low-speed torque
- Simple rugged construction
- Good heavy-vehicle manners
Weaknesses / Watch-outs
- Flathead airflow
- Very long stroke
- Heavy
Common Upgrades
- Electronic ignition
- Carburetor restoration
- Cooling upgrades
Racing History & Legacy
The 226 filled an important gap between Jeep’s small four-cylinders and later overhead-valve and overhead-cam sixes. It represents the last phase of large flathead six-cylinder power in Jeep utility vehicles.
References & Image Credit
Engine image: Unknown author · Public domain · source
Engineering Notes Worth Knowing
3.3125 x 4.375-inch bore and stroke; 226.2 cu in / 3.7 L.
Cast-iron L-head inline-six using a single-barrel carburetor.
Rated around 115 hp gross early, with about 190 lb-ft of torque.
Used in Willys pickups, Wagons, and Forward Control trucks.
History · context · related reading
The Story Behind Jeep 226 Super Hurricane
For heavier Willys and Jeep utility vehicles, the four-cylinder engines were not always enough. The Super Hurricane brought six-cylinder torque to pickups, wagons, and Forward Control models, giving those vehicles a stronger work-oriented personality.
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