This is the first completely new engine for Indian Motorcycles in the last 70 years. This is thanks to the new strategy being employed by current owner Polaris. The engine is a 1819cc V-twin with three camshafts, pushrods, two-valves per cylinder with an integrated air and oil cooling system, fuel injection and a six-speed gearbox.Polaris is claiming the engine has undergone over a million miles of testing both on the dyno and on the road and will be built in America once the bike reaches full production later this year.
Indian claims it has looked back over all of the historic bikes in the 112 years the firm has been in existence to make sure the engine pays homage to the history of the firm yet is modern enough to be of use for years to come.
With that history in mind the engine has parallel pushrod tubes, finned cylinder heads, downward firing exhausts and a left-hand air intake; all of which are engineering themes from older Indians.
The Thunder Stroke 111 as it has been named is a 1819 cc V-Twin engine. This is in preparation for the completely new bike which will be unveiled in mid 2013 and launched in 2014. The new bike will sport this very new Thunder Stroke 111.
Source: Indian unveils new 1819cc V-twin engine - | Motorbike reviews | Latest Bike Videos | MCN



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