This kit was developed as a more potent option to the popular Zippers Muscle 110 kits.  Perfect for Serious Sport Touring or Sportsman Competition Application The 110″ engine really comes alive with this top end and cam kit! Developed using our highest quality materials and machining processes assures you years of performance and durability. Starting at the top, your 110 heads are carefully ported to increase velocity and are assembled with our Step-Lock guides, flow-enhancing valves and performance springs.


  • Designed specifically for high performance Sport Touring
  • Adds up to 140 HP
  • Up to 60% more power over CVO engine
  • Purpose Built designed for power and durability
  • Zipper’s engineered engine kit designed with calibration and exhaust system
  • Available for Twin Cool and Air Cooled Engines

These kits are available from any Zipper’s Performance Products dealer, or you can send your carefully packed parts directly to Zipper’s. Send cylinders and heads for modification. In-shop time is generally 2 weeks. Please pack your parts carefully! All kits can be purchased whole or in any combination of desired components, please contact our sales department at 410-579-2828 for more details and pricing.


Weight 65 lbs
Dimensions 1 × 1 × 1 in
Engine Type

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1 review for #517-351 Zipper’s Muscle 113″ Kit for 2008-Up Twin Cam® CVO® Model TBW

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