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About S&S Cycle T143 Long Block Engine

S&S Cycle T143 Long Block Engine

  • The S&S T143 Long Block engine is the largest S&S engine that will fit in a stock Harley- Davidson chassis. At double the HP of a stock motor, the power of the T143 requires technical expertise for the installation and tuning along with an experienced rider. This is an ultra performance/race engine. Longevity, engine noise, vibration and throttle sensitivity have all been compromised to reach this level of performance while fitting in a stock chassis and, as such, is not suitable for every situation. It is the purchasers responsibility to consider the suitability for their application.
  • Engine noise and damage from abuse is not covered under warranty.
  • Fits in stock chassisno cutting or frame modifications
  • S&S B3 cylinder heads CNC-machined with 2-bolt exhaust flanges
  • 3 Piece Flywheels
  • S&S high flow oil pump and cam cover
  • S&S 635 Easy Start Gear Drive Cams and S&S 1. 725:1 rocker arms for. 674 in. total lift
  • S&S Premium High Performance Tappets
  • Made in USA
  • NOTE: Does not include carb/ intake or ignition system. Must be purchased separately
  • NOTE: T143-specific or custom exhaust required.
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