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Harley Davidson 84-99 Carb Replacement Evolution Engine From S&S Cycles With Natural, Wrinkle Black or Polished Finish - 31-9860

  Ultra performance race engine FAR more BHP and Torque than the stock engine plus  smoot

Harley Davidson 84-99 Carb Replacement Evolution Engine From S&S Cycles With Natural, Wrinkle Black or Polished Finish - 31-9860

Displacement - 124"    Bore - 4 1/8"    Stroke - 4 1/8"    Cam - 640    Piston Type - S&S Forged

Compression Ratio - 10.8:1

 

How S&S Cycles started: What started as a passion for speed, grew into the best known company name in the V-Twin high performance aftermarket. George J. Smith had to build his own parts to make his motorcycle faster. Now the company he founded manufactures the most prestigious line of "go fast" v-twin engine parts in the world. The company was started in the basement of his home in Blue Island IL in 1958, and moved to Viola, WI in 1969. In 2004 an additional facility was opened in La Crosse, WI.
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