1947 HARLEY DAVIDSON FL

74 cubic inch OHV Knucklehead motor and 4-speed hand-shift transmission. It has a rubber-mounted instrument panel and self-aligning head bearings. The gas tank holds 4 gallons, and the oil tank holds one. A total of 6,893 model FL were built in 1947, the final year of the Knucklehead

Almost every chopper enthusiast is aware of the Harley knucklehead engine. If you are not familiar with the knuckle head engine, it is a Harley Davidson V-Twin engine which derived its nickname from the fact that the rocker boxes resemble two knuckles on the back of a hand closed into a fist. The factory official named of the knuckle engine was originally "61 OHV" 

 many motorcycle enthusiasts, whether chopper fans or stock configuration fans, the Harley Davidson brand name is synonymous with cool, powerful, quality motorcycle engines, accessories, and parts. Frequently, anyone building a chopper will turn to a Harley power train because of the company's excellent reputation as well as for the prestige associated with owning a Harley V-Twin powered custom chopper.

The Harley Davidson Motorcycle Company initially introduced the knuckle head engine in 1936. Prior to 1936, Harley had manufactured overhead-valve singles but the 1936 knucklehead represented the first of the overhead valve V-Twins.

These powerful engines were chosen by many to place into a stretched, raked   frame to which over-stock length forks were added.

Today, the knuckle engine is a classic and anyone lucky enough to have a knucklehead chopper has a treasure of which they can be truly proud. Even as a basket case which must be completely rebuild, the knucklehead engine is a great choice for powering your custom chopper. These engines, when given proper care, can increase in value while providing you a truly classic chopper engine to enjoy.