Harley-Davidson 1450cc Specs

Updated April 17, 2017

The Twin Cam 88 engine symbolised power in the minds of Harley-Davidson owners when it was introduced in 1999. The 1450-cubic-centimetre engine provided a cruising speed of 105mph. The street-legal 1450cc Twin Cam 88b represented a technological advance available in a variety of finishes, and it was mounted directly on the metal frame of the Softail Fat Boy with its comfortable rear suspension in 2000.

Road King Classic

The Harley-Davidson Road King Classic--with its wide whitewall tires over steel-laced wheels, chrome headlight, leather touring seat and leather covered saddlebags--appeared in 1999 with the 1,450-cubic-centimetre Twin Cam 88 engine. The engine bore is 3.75 inches with a 4.0-inch stroke. The Twin Cam 88-cubic-inch engine featured electronic cruise control and electronic sequential port fuel injection with an intelligent clutch. With two valves per cylinder, the Road King glided smoothly with little vibration over the interstates and carried a 6.0-gallon gas tank. The motorcycle was available in 10 colours and two-tone combinations with triple-disc brakes and chrome fender emblems. The large-frame (FL), telescopic fork Road King featured 2-1-2 exhaust system and a chrome gas tank.

Fat Boy Softail Heritage Classic

The Softail Heritage Classic FLSTC has large-frame front forks, 16-inch wheels and a low seat only 25 to 27 inches high. The "ST" stands for softail, and the "C" represents classic. Harley revised the original 1450cc engine block with two chain-driven counter-balancers for the Softail motorcyles. The Twin Cam 88b was the first air-cooled Harley engine. It has an intelligent clutch, which integrated and optimised engine function by opening and closing valves slower or faster based on information from sensors. Variable opening and closing of the valves increases engine torque to 332 pound-feet and reduces engine emissions. The Twin Cam 88b reduces so-called "Harley vibes" and was replaced by the Twin Cam 96A and 96B in the 2007 model year.

Dyna Super Glide

The 2010 FXD Dyna Super Glide motorcycles have rubber-mounted Twin Cam 88 engines with large cooling fins for added cooling. The 1450cc engine actually displaced 1,447.91 cubic centimetres (or 88.4 cubic inches). The crankshafts have a single pin in a knife-and-fork arrangement for the connecting rods between a pair of flywheels. The engine produces 67.44 horsepower at 5,500 revolutions per minute and a torque of 78.18 pound-feet at 2,900rpm. Variable valve timing opens intake valves faster and longer on acceleration and closes valves faster when driven slowly or idling for peak performance and maximum efficiency.

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About the Author

Pat Martin has been writing nonfiction since 1978. Her articles have appeared in the “Nautical Research Guild Journal” and the “Worcester County Times,” among other publications. Martin is a National Board certified professional counselor and holds a Master of Science in human services from Capella University.