Kawasaki’s Ninja line of high-performance motorcycles started in 1984 with the GPz900R and now includes more than a dozen models, including the racetrack-only H2R with its 328 horsepower inline four-cylinder engine. While that 998-cubic centimeter beast is the most powerful Kawasaki motorcycle engine available from the factory, it’s by no means the largest. That honor goes to the Vulcan 2000’s 2,053-cubic centimeter V-twin, which produces 103 horsepower and 130.5 lb-ft of torque. The Vulcan’s engine had a 103-millimeter bore and
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