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88/96/98/103 Inch Sidewinder Kit—Made To Order

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S&S Sidewinder Kit For 1984-1999 Big Twins – Made To Order

This 88, 96, 98, or 103 inch Sidewinder kit for 1984-1999 Harley-Davidson® Evolution® big twin models has been the basis for an S&S Hot Set Up Kit® in the past. Now it is available as a made to order kit that allows you to configure the kit to your specifications.


An S&S Sidewinder kit is one of the most popular and cost effective performance upgrades available for Harley-Davidson Evolution big twin engines. S&S Sidewinder top-end kits are available for owners of stock 80 inch engines and for engines already equipped with S&S 89 inch stock bore stroker kits. These top end kits yield 88 and 96 inch respectively, using the engine's existing flywheels. Stock 80 inch flywheels (4-1/4 inch stroke) must be rebalanced when installing the 88 inch top end kit, but the flywheels in an engine with an S&S 89 inch kit (4-5/8 inch stroke) do not require rebalancing when installing a 96 inch Sidewinder top-end kit. Stock crankcases must be bored to accept the big bore cylinders. We also offer Sidewinder kits with the correct stroke flywheels for 88, 96, 98, and 103 inch displacements. Complete instructions are included.


The S&S Hot Set Up Kit® has long been the industries first and foremost complete performance solution for a specific application. Each kit contained everything you need to get the job done. Now we have made it even better. Made to order kits allow you to choose as much or as little as you like to suit your performance goals and what you already have.


Basic Kit Contents:
The basis of this kit is a Sidewinder Kit that contains the following:

  • Big Bore Cylinder and Piston Kit
  • Flywheel Assembly for 96 98 and 103

In addition you can select the following items to complete your project:

  • Valve Springs
  • Pushrods
  • Cam
  • Fuel System, Carb or EFI
  • EFI Module
  • Tuned Induction
  • Heads
  • Manifold
  • Rocker Arms
  • Rocker Boxes
  • Natural or Wrinkle Black Finish


The images shown reflect typical configurations of this made to order kit. This product is only sold through S&S dealers. See your local S&S dealer for more information. To find a dealer near you, click here.


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