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S&S Sidewinder Kits for Evolution Big Twin

Nothing beats cubic inches! The S&S Sidewinder kits for Evolution Big Twin engines with stock cylinder heads rank among the best ways to gain real, straightforward, impressive, pulse-accelerating horsepower. They are not cheap and not easy to install but after all S&S Sidewinders are legendary and the result speaks for itself.

This is the most popular Sidewinder kit because it combines straightforward installation and significant power increase. Suits all kinds of bikes due to excellent allround qualities. 4-5/8” (11,75 cm) stroke, 10:1 compression, 0,4 mm longer 3-5/8” bore cylinders with forged pistons. Kits do not include pushrods & manifold.

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  • Installation requires kit WW 61-705.
  • Original engine cases require a boring operation to accept the larger bore cylinders.
S&S Power Kits

S&S Power Kits

Since the first V-twin rolled out of Milwaukee there were people who thought about increasing the displacement in their search for more horsepower and since 1958 there´s none who does this better than S&S. Stroker flywheel assemblies and big bore cylinders, installed as separate components or in combinations allow to achieve various displacement increases. Depending on your personal needs and preferences choose from different kits for increases up to 116 cubic inches. The performance of S&S components has been proven in thousands of engines on the open highways as well as on the race tracks of the world and the brand name is synonymous for highest quality in material and guaranteed positive horsepower results.
Sidewinder kit by S&S; fits Big Twin Evolution; bare; stroke: 4-5/8 ”; nominal bore: 3-5/8 ”; 96 in³; compression: 10:1
W&W# Picture net price* Available from warehouse Germany?
63-862 S&S Sidewinder Kits for Evolution Big Twin $2,535.97 kit
in stock
* United States of America: Tax free shipping. Please check your local import fees.

Spare parts:

  • 63-992

    63-992 Gasket by S&S; for Cylinder base; fits Evolution; paper; nominal bore: 3-5/8 ”; 0.020” thick; gross weight: 10 g

  • 63-997

    63-997 Gasket »Firering« by S&S; for Cylinder head; fits Evolution; metal/graphite compound; nominal bore: 3-5/8 ”; 0.0625” thick; gross weight: 20 g

Accessories:

  • 57-428

    57-428 Gasket by James Gaskets; for Cylinder base; fits Evolution; rubberized steel with silicone seal; nominal bore: 3-5/8 ”; 0.020” thick; gross weight: 40 g

  • 58-243

    58-243 Gasket »MLS« by Cometic Gasket; for Cylinder head; fits Evolution; steel / fluoroelastomer; nominal bore: 3-5/8 ”; 0.040” thick; gross weight: 107 g

  • 55-413

    55-413 Gasket »Firering« by James Gaskets; for Cylinder head; fits Evolution; metal/graphite compound / silicone; nominal bore: 3-5/8 ”; 0.045” thick; gross weight: ...

  • S&S Late to Early Pinion Shaft Conversion Kit

    S&S Late to Early Pinion Shaft Conversion Kit Big Twin Evo models from 1990–up, which are factory equipped with the one-piece flywheel and pinion shaft, require this pinion shaft conversion kit in ...

See also:

  • Jims Forceflow Cylinder Head Cooler

    Jims Forceflow Cylinder Head Cooler This smooth streamline device will keep your Twin Cam running cooler even on your second stop and go ride around Lake Faak in the midday heat. The Jims R & D ...

Have any questions?

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    Phone: +49 / 931 250 61 16
    eMail: sales@wwag.com