Harley Davidson Knucklehead Engine Specs

1207 cc OHV 45 V-twin Production.

Harley davidson knucklehead engine specs. The H-D Knucklehead V-twin was introduced in 1936. 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. Dealers can access this manual through our Cyclepedia PRO Product.

In 1941 the engines capacity was increased to 74 cu. This work was completed using mainly OEM parts. We pulled the top end off to see what was inside and the pistons looked.

To understand how and why Harley-Davidson and the rest of the motorcycle industry got to where it is today it is important to first understand the 1936 model EL. In 1941 Harley-Davidson introduced the 74-inch 1208cc OHV engine making 53 horsepower and the Knucklehead would remain in production until the introduction of the Panhead in 1948. Our new friend Koji Hamada of Japans Hammer Sycle has lived a life deeply entwined with old Harley-Davidsons having bought his first H-D an 84 FXR at.

Harley-Davidson pulled ahead of Indian in 1936 with the introduction of its first overhead valve V-Twin. Zach Waters Bikes Name. Both engines have markedly made their place in Harley history.

Harley-Davidson has produced many engines in its history. 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 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.

And the model was called the FL. Wet Wally Build Time. The engine can have different bore and strokes as well as horsepower and torque ratings depending on what motorcycle it is in.