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53 hp
- 53 hp / 39.5 kW @ 6000 rpm
www.motorcyclespecs.co.za/model/h-d/harley_davidson_fl_1200_type_74.htm
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Where the Flathead engines produced about 30 to 35 horsepower, the Knucklehead 61 cubic inch OHV engine generated approximately 40hp while the 74 OHV produced roughly 45hp.
The Harley Davidson Knucklehead is a retronym referring to an engine blueprint produced by the American OEM from 1936 to 1947. This power mill had a piston displacement of 997—1,210 cm 3 (61—74 ci), spewed 36—53 hp (26.8—39.5 kW), and was the forerunner of the Panhead and Shovelhead engines.
The knucklehead is a retronym used by enthusiasts to refer to a Harley-Davidson motorcycle engine, so named because of the distinct shape of the rocker boxes. [1] The engine is a two-cylinder, 45 degree, pushrod actuated overhead valve V-twin engine with two valves per cylinder.
Aug 25, 2023 · The Knucklehead engine pioneered the engine layout that exists to this day in the modern Harley-Davidson Milwaukee 8 engine. Related: Win a 1937 Harley Davidson Knucklehead With Wheels Through...
- Motorcycle Writer
Knucklehead Harley-Davidson engines were rated at about 40-55 HP. This engine debuted in 1936 and was offered in two displacements: the Knucklehead 61” had 40 HP while the larger 74” cranked out 45 HP.
Dec 13, 2023 · From 1936 to 1938, Harley-Davidson introduced the Knucklehead in three versions: The E, the ES, for sidecar use, and the EL, the HiPo version of the E with 40 horsepower. By 1938, they dropped the E models, making them one of the rarest models and a vaunted classic today.
Jul 25, 2024 · The Knucklehead engine features a 61 cubic inch displacement, producing around 61 horsepower, known for its exhilarating acceleration and vintage character. Torque and horsepower balance is essential in classic Harleys, with high torque at low RPMs facilitating smooth acceleration for an optimal riding experience.
