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A stripped down FLH touring model with an updated Duo-Glide style headlamp nacelle that replaced Electra Glide Sport. 1994–1998 used the 82 cu in (1,340 cc) Evolution engine power plant and older frame dimension (seat height), with fuel injection being offered as an option from 1996. The 1999–2008 used the newer Twin Cam engine and had a ...
In 2016, the Milwaukee-Eight engines became available on Touring and Trike models of the 2017 model year. The Softail models started using the Milwaukee-Eight the following year. The most significant change from the Twin Cam are the two extra valves per cylinder head which produce 10 percent more torque.
Harley-Davidson Twin Cam engine at the Harley-Davidson Museum. The Harley-Davidson Twin Cam are motorcycle engines made by Harley-Davidson from 1998 to 2017. Although these engines differed significantly from the Evolution engine, which in turn was derived from the series of single camshaft, overhead valve motors that were first released in 1936, they share a number of characteristics with ...
As Harley-Davidson engines evolved, the distinctive shape of the rocker covers led Harley enthusiasts to recognise an engine simply by identifying the head, with names such as "Flathead", "Knucklehead" "Panhead", and "Shovelhead".
For 2017, Harley released the Street Rod based on the 750 Street model. This new model introduced new features such as higher output Revolution X engine 68.4 hp (51.0 kW) @ 8,750 rpm and 47.2 lb⋅ft (64.0 N⋅m) @ 4,000 rpm, 43 mm inverted front forks and piggyback reservoir rear shocks, drag-style bars and 17 inch wheels. [ 8 ]
Twin Cam 103, 2003–2006, 2009, 103 cubic inch (1,690 cc) (engines for C.V.O. models), Standard on 2011 Touring models: Ultra Limited, Road King Classic and Road Glide Ultra and optional on the Road Glide Custom and Street Glide. Standard on most 2012 models excluding Sportsters and 2 Dynas (Street Bob and Super Glide Custom).
It offers the airflow of more expensive heads, at a much lower cost. It does, however, require a specific intake manifold (the L31 has four bolts per head attaching the intake manifold, as opposed to the "traditional" six bolts per head found on older Chevrolet small-blocks). Chevrolet's L31 was replaced by GM's LS-based 5.3L LM7 and 6.0L LQ4.
The traditional five-bolt pentagonal cylinder head pattern was replaced with a square four-bolt design (much like the 1964–1990 Oldsmobile V8), and the pistons are of the flat-topped variety (in the LS1, LS2, LS3, LS6, LS7, LQ9, and L33), while all other variants, including the new LS9 and LQ4 truck engine, received a dished version of the GM ...