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S&S Forged Pistons 3-5/8” Big Bore Knuckle, Pan and Shovelhead 4-1/4” and 4-1/2” Stroke

Aluminum cast or forged pistons for our 3-5/8” Big Bore and Sidewinder kits. Complete kits with front and rear piston, rings, bolts and clips. Replacement ring sets for 2 pistons. The originals by S&S.

Forged big bore pistons by S&S for 4-1/4" and 4-1/2” stroke flywheels (88 cui./93 cui.) with stock 8-1/2" diameter. Sold as complete kits with front and rear piston, rings, bolts and clips.

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Forged piston »1800´s« by S&S, for Knucklehead, Panhead and Shovelhead 4-1/4” and 4-1/2” stroke, aluminum, bore: 3-5/8 ”
W&W# Picture Price incl. VAT* Available from warehouse Germany?
63-906 S&S Forged Pistons 3-5/8” Big Bore Knuckle, Pan and Shovelhead 4-1/4” and 4-1/2” Stroke Over-/Undersize: +0.010 ” 427,31 € pair
not available via our webshop,
please contact your dealer
63-797 S&S Forged Pistons 3-5/8” Big Bore Knuckle, Pan and Shovelhead 4-1/4” and 4-1/2” Stroke Over-/Undersize: +0.070 ” 387,62 € set
not available via our webshop,
please contact your dealer
* Includes German VAT (19% or reduced tax rate of 7% for books)

Spare parts:

Any Questions?

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