It's funny that Willys took the effort to modify the CJ-3A into the CJ-3B to utilize the F-head engine since in 1952 it had already begun building the M38A1 for the US military, which used the new ...

The cylinder head was also redesigned, and these changes were folded into the design of the F-head Hurricane engine which replaced the Go-Devil in later 1950s CJ models.

Willys put the F-head engine used in its station wagons and trucks in the CJ-3B to give it a 20 percent power boost.

The retooled F-head V-twin was such a hit that H-D leaned on it for nearly 20 years. Harley-Davidson This engine, later increased to 61 cubic inches and then 74 cubic inches, was such a strong and ...

We take a close look at Jeep engines and performance before engine swaps and fuel injection were the common thing. Only in Jp Magazine!

Their "factory" was a 10x15-foot shed. The engine in the bike had a 31/8-inch bore and 3-inch stroke. For you engine buffs, it was 1911 when the F-head engine debuted (then it left in 1929).