Harley Davidson Knucklehead Engine Specs

1207 cc OHV 45 V-twin Production.

Harley davidson knucklehead engine specs. When the Harley-Davidson EL was introduced in 1936 with its all new overhead valve 61 cu. The 1936 Harley Davidson FL 1200 Type 74 Knucklehead was powered by a four-stroke air-cooled 1208cc V-Twin powerplant that was paired to a four-speed manual transmission with. Former Powerhouse Cycles Website.

This engine is not to be confused with the Sportster Evo same name different engine Twin Cam 1999-present There are 88-ci 96-ci 103-ci and 110-ci versions. In 1941 the engines capacity was increased to 74 cu. Heres a look at the technical evolution of the 61-cu-in.

In 1945 Harley-Davidson introduced a new engine that would come to be known as the Panhead and somewhere in that post war period the older OHV engine began being referred to as a Knucklehead because of the shape of the top covers of the engine. It pushes 80 horsepower at 5200 rpm. The Knucklehead and Ironhead engines were named after features of the engine and materials that were used to manufacture them.

Harley-Davidson has produced many engines in its history. The famed Knucklehead engine. Type Air-cooled Knucklehead V-Twin OHV Displacement 1208 cm3 Bore X Stroke 34x40 in OR 86 mm Compression Ratio 701 Horsepower 554800 KWhpRPM Torque.

And the model was called the FL. Both engines have markedly made their place in Harley history. 1947 was also the year that the Harley Davidson introduced Knucklehead to the world.

Engine and chassis of Harley-Davidsons first OHV Big Twin. This motor has been sitting a long time and the person we got it from knew very little about it. The two models that were manufactured were the 61cuin EL and 74cuin FL model.