The F-Head 134 inline 4 was the standard engine in the CJ-5 andCJ-6 from their introduction until 1971. The F-Head was the onlyengine ever used in the CJ-3B. The engine also saw action instarting in the middle of 1950 in Willys Wagons and Willys Pickups.It was also used in FC trucks.
The F-Head 134 uses a cast iron block and head with mechanicallifters and 3 main bearings. Two versions of the F-Head wereavailable most years, the output specifications are the samefor both, the compression is different. The intake valves arein the head, but the exhaust valves are in the block. Thevalve configuration makes the F-Head engine taller than the L-Headbecause the L-Head has the intake and exhaust valves in the block.
- F-4 134 Hurricane 473/475 Engine Specifications. Sort By: Price: Low to High Price: High to Low Most Popular Title Manufacturer Newest Oldest Availability 25.
- Willys Hurricane engine The Willys L134(nicknamed Go Devil) is a straight-4automobile engine that was made famous in the Willys MB and Ford GPW Jeep produced during World War II. It powered nearly all the Jeep vehicles built for the U.S. It was later used in a variety of civilian Jeep vehicles.
- 6 CYLINDER WILLYS HURRICANE ENGINE. Transmission Type Manual. Body Color Orange. Body Style Suv. 4-CYL F134 ENGINE MANUAL 4X4 12-VOLT PTO $19,900 WWVA796.KT.
New engine compartments had to be designed to make room for thetaller engine. The CJ-5 and CJ-3B were designed with this enginein mind. It is fairly common to see a F-Head engine swapped intoa CJ-2A or CJ-3A. Normally a section of the hood is cut out tomake room for the carburetor.
We have the F134 engines in stock, or can rebuild your engine. This cost is for the long block assembly. (Please email us on the short block cost).; Important note: Complete cores (block, head, crankshaft, cam) are required in exchange and final cost is contingent on full inspec.
There is a lot of confusion about the name of the F-Head engine.The F represents the valve configuration where one set of valvesis in the head and one is in the block. The 'F' in F-Head doesnot stand for 'Flat' nor does it stand for 'Ford'. Other makesof vehicles used flat head engines and some people think theF-Head stands for flat head. Another source of confusion isFord built some of their WWII GPWs with bolts with an 'F' on thehead so the parts could be distinguished from the Willys MB. Theyused F head bolts to build the GPW, but this is not related to theF-Head engine.
The main difference between different versions of the F-Head engineis the compression. The early F-Heads used between '50-'60 in WillysWagons, Willys Pickups, CJ-5s, CJ-3B, etc had a low compression F-Headstandard. The Willys Pickup only used this engine from '50-'56 andin '59.
| Hurricane F-Head 134 I4 | |
|---|---|
| Bore x Stroke | 3.125' x 4.375' |
| Displacement | 134.2 (2.199L) |
| Compression Ratio | 6.9:1 |
| Horsepower (gross) | 72@4000rpm |
| Torque (gross) | 114@2000 |
| Main Bearings | 3 |
| Valve Configuration | F-head |
| Fuel | 1-bbl Carter |
The 'High Altitude' option was the same engine with a highercompression ratio.
| Hurricane F-Head 134 I4 | |
|---|---|
| Bore x Stroke | 3.125' x 4.375' |
| Displacement | 134.2 (2.199L) |
| Compression Ratio | 7.4:1 |
| Horsepower (gross) | 72@4000rpm |
| Torque (gross) | 114@2000 |
| Main Bearings | 3 |
| Valve Configuration | F-head |
| Fuel | 1-bbl Carter |
Between 1961 and 1970, the high compression version became standardand the low compression version was optional. A slight horse powergain was realized. The Willys Pickup used the 7.4:1 compressionengine as standard and a 7.8:1 compression engine as optional from'60-'62.
| Hurricane F-Head 134 I4 | |
|---|---|
| Bore x Stroke | 3.125' x 4.375' |
| Displacement | 134.2 (2.199L) |
| Compression Ratio | 7.4:1 |
| Horsepower (gross) | 75@4000rpm |
| Torque (gross) | 114@2000 |
| Main Bearings | 3 |
| Valve Configuration | F-head |
| Fuel | 1-bbl downdraft |
The optional low compression F-Head used from '61 until '70.
| Hurricane F-Head 134 I4 | |
|---|---|
| Bore x Stroke | 3.125' x 4.375' |
| Displacement | 134.2 (2.199L) |
| Compression Ratio | 6.9:1 |
| Horsepower (gross) | 75@4000rpm |
| Torque (gross) | 114@2000 |
| Main Bearings | 3 |
| Valve Configuration | F-head |
| Fuel | 1-bbl downdraft |
In 1971, a low compression version was the only one availablein the 49 state version. A California version was high compression.
| Hurricane F-Head 134 I4 | |
|---|---|
| Bore x Stroke | 3.125' x 4.375' |
| Displacement | 134.2 (2.199L) |
| Compression Ratio | 6.7:1 |
| Horsepower (gross) | 75@4000rpm |
| Torque (gross) | 114@2000 |
| Main Bearings | 3 |
| Valve Configuration | F-head |
| Fuel | 1-bbl downdraft |
The California high compression F-Head available in 1971.
Willys Hurricane Engine Manual Diagram
| Hurricane F-Head 134 I4 | |
|---|---|
| Bore x Stroke | 3.125' x 4.375' |
| Displacement | 134.2 (2.199L) |
| Compression Ratio | 7.4:1 |
| Horsepower (gross) | 75@4000rpm |
| Torque (gross) | 114@2000 |
| Main Bearings | 3 |
| Valve Configuration | F-head |
| Fuel | 1-bbl downdraft |
Contributors
Photos courtesy Dan Bever and Derek Redmond.
F4-134 Engine Specifications (100K GIF) Is The Complete Specs From The Kaiser Jeep Universal Service Manual(1965)
Old Willys Forum
Willys MB/GPW: We won't lie, this Jeep model is our favorite. CJ2A/3A/B: This Jeep is the girl next-door. M38 & M38A1: The last of the military flat fenders and it's laterfull-figured version. Jeepster: You never had a chance. Shiny paint, chrome, white walls and a drop top. Jeep Wagon/Service Truck: Ralph Kramden's driver when he wasn't driving a bus. Willys Pick-Up: With bib overalls and well worn boots, this variant says get'r done. CJ5 / CJ6: The curvaceous Jeep; o.k. we'll stop there, you get the idea. American Motors Jeeps: The best vehicle AMC ever sold. Don't believe us, just look up the AMC Gremlin, Matador and Javelin, you may want to look away.