S&S CYCLE V-SERIES 124" COMPLETE ENGINE W/ 640 CAMS FOR 1984-1999 CARBURETED EVOLUTION MOTORCYCES - SHOW POLISHED FINISH (31-9886)



This S&S 124 cubic inch V124 engine fits 1984-1999 carbureted Harley-Davidson big twins, and custom chassis designed for Harley-Davidson Evolution engines.

  • Large displacement, high flowing S&S heads, and gear driven 640 cam result in large horsepower increase over stock engine.
  • 124 cubic inch displacement at 10.8:1 compression.
  • 4-1/8" bore X 4-5/8" stroke.
  • 1.671" diameter crankpin.
  • 0.927" wristpin.
  • Piston cooling jets.
  • Large fin pack – heads and cylinders.
  • Press together crankshaft.
  • HVHP oil pump.
  • Electric compression release – easy starting under any circumstance.
  • S&S Super G carburetor with slotted "Slasher" air cleaner cover.
  • Polished Aluminum finish.
  • Chrome gearcover, tappet covers, and rocker covers.
  • Made in USA.
  • Two-year warranty.






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