Piston Sets - Powersports

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  S&S Cycle

  S&S Cycle 84-99 3-1/2in x 4-1/4in Standard 80in Piston Set

  Regular price

  £509.20

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  £509.20

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  S&S® forged, 3-1/2" bore replacement pistons for 1984-'99 HD® 80" big twins With S&S® Super Stock Cylinder Heads. 4-1/4" stroke. 10:1 compression. Standard bore size.
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  S&S Cycle

  S&S Cycle 84-99 BT 3-5/8in x 5in .010 Piston Set

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  £509.20

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  £509.20

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  These forged, 3-5/8" big bore flat topped pistons are used in S&S Sidewinder kits and Hot Set Up Kits for HD Evolution big twins with stock cylinder heads and 4-1/4" and 4-1/2" stroke engines w...
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  S&S Cycle

  S&S Cycle 84-99 BT 3-5/8in x 4-5/8in .020 Piston Set

  Regular price

  £487.15

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  £487.15

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  These forged, 3-5/8" big bore flat topped pistons are used in S&S® Sidewinder® kits and Hot Set Up Kits® for HD® Evolution® big twins with stock cylinder heads and 4-1/4" and 4-1/2"stroke engin...
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  S&S Cycle

  S&S Cycle 84-99 BT 3-5/8in x 4-5/8in .010 Piston Set

  Regular price

  £487.15

  Regular price

  Sale price

  £487.15

  Unit price

  /  per 

  These forged, 3-5/8" big bore flat topped pistons are used in S&S® Sidewinder® kits and Hot Set Up Kits® for HD® Evolution® big twins with stock cylinder heads and 4-1/4" and 4-1/2"stroke engin...
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  S&S Cycle

  S&S Cycle 84-99 BT 3-5/8in x 4-5/8in Standard Piston Set

  Regular price

  £487.15

  Regular price

  Sale price

  £487.15

  Unit price

  /  per 

  These forged, 3-5/8" big bore flat topped pistons are used in S&S® Sidewinder® kits and Hot Set Up Kits® for HD® Evolution® big twins with stock cylinder heads and 4-1/4" and 4-1/2"stroke engin...
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  S&S Cycle

  S&S Cycle 86-03 XL 4in x 4-5/8in Piston Set - .020in

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  £509.20

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  £509.20

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  These forged, 4" bore flat-topped pistons are intended for use in S&S® 4" bore Super Sidewinder® engines as well as other custom 4" bore engines.
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  S&S Cycle

  S&S Cycle 86-03 XL 4in x 4-5/8in Piston Set - .010in

  Regular price

  £509.20

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  Sale price

  £509.20

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  These forged, 4" bore flat-topped pistons are intended for use in S&S® 4" bore Super Sidewinder® engines as well as other custom 4" bore engines.
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  S&S Cycle

  S&S Cycle 84-99 BT 4in x 4-1/2in Piston Set - .030in

  Regular price

  £509.20

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  £509.20

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  These forged, 4" bore flat-topped pistons are intended for use in S&S® 4" bore Super Sidewinder® engines as well as other custom 4" bore engines.
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  S&S Cycle

  S&S Cycle 84-99 BT 4in x 4-1/2in Piston Set - .020in

  Regular price

  £509.20

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  £509.20

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  These forged, 4" bore flat-topped pistons are intended for use in S&S® 4" bore Super Sidewinder® engines as well as other custom 4" bore engines.
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  S&S Cycle

  S&S Cycle 84-99 BT 4in x 4-1/2in Piston Set - .010in

  Regular price

  £509.20

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  Sale price

  £509.20

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  These forged, 4" bore flat-topped pistons are intended for use in S&S® 4" bore Super Sidewinder® engines as well as other custom 4" bore engines.
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  S&S Cycle

  S&S Cycle 84-99 BT 4in x 4-1/2in Piston Set - Standard

  Regular price

  £509.20

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  £509.20

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  These forged, 4" bore flat-topped pistons are intended for use in S&S® 4" bore Super Sidewinder® engines as well as other custom 4" bore engines.
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  S&S Cycle

  S&S Cycle 1999+ BT 106in Forged Stroker Pistons - Plus .010in

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  £574.30

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  £574.30

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  These forged 3-7/8" bore stroker pistons for 1999-'16 HD® big twin are required for the S&S 106" stock bore stroker kit with 4-1/2" stroke flywheels. They are compatible with stock or S&S® ...
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  S&S Cycle

  S&S Cycle 1999+ BT 3-7/8in Piston Set - Standard

  Regular price

  £574.30

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  £574.30

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  These forged 3-7/8" bore stroker pistons for 1999-'16 HD® big twin are required for the S&S 106" stock bore stroker kit with 4-1/2" stroke flywheels. They are compatible with stock or S&S® ...
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  S&S Cycle

  S&S Cycle 84-99 BT LSF 3-5/8in Piston Set - .020in

  Regular price

  £509.20

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  £509.20

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  These forged pistons are designed as an intermediate compression piston for engines with S&S Super Stock cylinder heads. These pistons can be used to increase the compression of S&S Sidewin...
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  S&S Cycle

  S&S Cycle 84-99 BT LSF 3-5/8in Piston Set - .010in

  Regular price

  £509.20

  Regular price

  Sale price

  £509.20

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  These forged pistons are designed as an intermediate compression piston for engines with S&S Super Stock cylinder heads. These pistons can be used to increase the compression of S&S Sidewin...
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  S&S Cycle

  S&S Cycle 84-99 BT 3-5/8in Piston Set - .040in

  Regular price

  £509.20

  Regular price

  Sale price

  £509.20

  Unit price

  /  per 

  These forged pistons are designed for use in S&S big bore Hot Set Up Kits for HD Evolution big twin engines, and S&S 3-5/8" bore engines with S&S Super Stock cylinder heads and 4-1/4", ...
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  S&S Cycle

  S&S Cycle 84-99 BT 3-5/8in Piston Set - .030in

  Regular price

  £509.20

  Regular price

  Sale price

  £509.20

  Unit price

  /  per 

  These forged pistons are designed for use in S&S big bore Hot Set Up Kits for HD Evolution big twin engines, and S&S 3-5/8" bore engines with S&S Super Stock cylinder heads and 4-1/4", ...
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  S&S Cycle

  S&S Cycle 84-99 BT HSF 3-5/8in Piston Set - .020in

  Regular price

  £509.20

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  Sale price

  £509.20

  Unit price

  /  per 

  These forged pistons are designed for use in S&S big bore Hot Set Up Kits for HD Evolution big twin engines, and S&S 3-5/8" bore engines with S&S Super Stock cylinder heads and 4-1/4", ...
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  S&S Cycle

  S&S Cycle 84-99 BT HSF 3-5/8in Piston Set - .010in

  Regular price

  £509.20

  Regular price

  Sale price

  £509.20

  Unit price

  /  per 

  These forged pistons are designed for use in S&S big bore Hot Set Up Kits for HD Evolution big twin engines, and S&S 3-5/8" bore engines with S&S Super Stock cylinder heads and 4-1/4", ...
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  S&S Cycle

  S&S Cycle 2007+ BT 4.250in Bore 4.840in - Wrinkle Black w/o Highlight

  Regular price

  £1,637.95

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  £1,637.95

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  S&S has been building big bore kits since the 60s and has it down to an absolute science. Our latest efforts are aimed at the Milwaukee Eight® platform (2017 and newer big twins) and open up a ...
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  S&S Cycle

  S&S Cycle 2017+ M8 Models 4.250in Bore 4-5/8in Stroke Cylinder Kit - Wrinkle Black w/ Highlight

  Regular price

  £1,726.15

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  £1,726.15

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  S&S has been building big bore kits since the 60s and has it down to an absolute science. Our latest efforts are aimed at the Milwaukee Eight platform (2017 and newer big twins) and open up a w...
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  S&S Cycle

  S&S Cycle 2017+ M8 Models 4.250in Bore 4.840in Big Bore Cylinder Set - Black Granite w/ Highlight

  Regular price

  £1,026.85

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  £1,026.85

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  We recommend using S&S Cycle Head Bolts for M8, part number 900-1006 for all big bore applicationsThis Part Fits: Year Make Model Submodel 2018-2020 Harley-Davidson FLDE Deluxe 107 Base 20...
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  S&S Cycle

  S&S Cycle 00-21 Sportster Models 1200cc to 1250cc Hooligan Kit - Silver

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  £1,914.10

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  £1,914.10

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  Whether you're racing Hooligan flat-track or just want more power, the S&S Hooligan kits for 2000-2021 Harley-Davidson ®Sportster® models will give you an edge on the competition. Boost that 12...
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  S&S Cycle

  S&S Cycle 00-21 Sportster Models 1200cc to 1250cc Hooligan Kit - Wrinkle Black

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  £1,914.10

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  £1,914.10

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  Whether you're racing Hooligan flat-track or just want more power, the S&S Hooligan kits for 2000-2021 Harley-Davidson® Sportster® models will give you an edge on the competition. Boost that 12...