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SPUTHE ENGINES

Alloy Sportster

  • 80 cubic inches, 3.625” bore, 3.8125” stroke

  • 1978 to 1983

  • Duel carb aluminum heads & aluminum cylinders

  • First complete aftermarket V-twin engine

  • First street engine to exceed 100 horsepower

 

EVO

  • 104 cubic inches, 3.780” bore, 4.625” stroke
  • 1984 to 1998
  • First complete aftermarket engine V-twin offered
  • Biggest production engine made for many years
  • Many features were incorporated in the H-D TC88
  • First street engine to exceed 120 horsepower

 

Spectre

  • 100 cubic inches
  • 3.780” bore, 4.500” stroke
  • 3.875” bore, 4.250” stroke
  • 4.000” bore, 4.000” stroke
  • 1991 to 1998
  • First 60 degree high cam aftermarket engine
  • First production dual carb Big Twin
  • First street engine to exceed 140 horsepower

 

 

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Tel: (530) 268-0887
11185 Lime Kiln Road
Grass Valley, CA 95949-9715

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