Pistons - Rings - Cylinders

S&S 4.125" Bore Piston Ring Set +.010" (94-1401X)

Replacement ring sets for S&S pistons only Rings come as sets for two pistons Made in the U.S.A. Compatible Vehicles Years Make Make Notes 1995-1997 Harley-Davidson Bad Boy FXSTSB 2011-2013 Harley-Davidson Blackline...

$70.97

$63.43

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S&S 4.125" Bore Piston Ring Set +.010" (940-0012)

Replacement ring sets for S&S pistons only Rings come as sets for two pistons Made in the U.S.A.

$90.05

$78.15

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S&S 4.125" Bore Piston Ring Set +.020" (940-0013)

Replacement ring sets for S&S pistons only Rings come as sets for two pistons Made in the U.S.A.

$90.05

$78.15

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S&S 4.125" Standard Compression Big Bore Black Cylinder & Piston Kit (910-0221)

Big Bore kit yields excellent results with stock cylinder heads The stock 4-3/8" stroke and 4-1/8" bore result in a 117' displacement Easy installation no need to bore or split existing cases, just swap the cylinders (unless otherwise...

$1,742.59

$1,340.34

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S&S 4.125" Standard Compression Big Bore Black Cylinder & Piston Kit (910-0338)

Big Bore kit yields excellent results with stock cylinder heads The cylinders are machined with the stock bolt pattern and are intended for use in stock crankcases of 2007-'16 big twin engines This kit must be used with 4-5/8" flywheels...

$1,742.59

$1,340.34

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S&S 4.250" Bore Piston Ring Set (940-0060)

4.250" bore Complete set of piston rings Made in the U.S.A. Compatible Vehicles Years Make Make Notes 2018-2019 Harley-Davidson Breakout FXBR 107 2018-2020 Harley-Davidson Breakout FXBRS 114 2017 Harley-Davidson Breakout...

$179.09

$168.95

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S&S 4.320" M8 Big Bore Black Cylinder & Piston Kit W/Highlighted Fins (910-0847)

Huge bore increase means huge power increase Works with stock crankcases (no machine work) Powder coat finish matches factory finish MLS (multi-layered steel) head gaskets 4.320" Bore 4.5" stroke length Black granite with highlighted...

$1,695.95

$1,599.95

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S&S 750cc Big Bore Piston Kit (920-0144)

Complete kits include cylinder sleeves, pistons and head gasket 750cc kit increase bore and stroke to 83.5mm x 67.8mm (stock is 78 mm x 67.8 mm) Increases compression ration to 11.0:1 (stock is 9.5:1) Made in the U.S.A. FOR CLOSED COURSE...

$896.95

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S&S 79cc Wrinkle Black Super Stock Cylinder Head Kit (900-0251)

High port flow gives great performance now, and more later when additional upgrades are done Heads are fully assembled with springs and valves Compression ratios vary depending on cylinder heads chosen, pistons used and engine displacement; see...

$1,795.95

$1,463.19

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S&S 865cc Big Bore Piston Kit (920-0145)

Complete kits include cylinder sleeves, pistons and head gasket 865cc Increases bore and stroke to 90 mm x 67.8 mm (stock is 78 mm x 67.8 mm) Increases compression ratio to 11.0:1 (stock is 9.5:1) Made in the U.S.A FOR CLOSED COURSE COMPETITION USE ONLY...

$875.95

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S&S 91cc Super Stock Cylinder Head Kit (900-0349)

High port flow gives great performance now, and more later when additional upgrades are done Heads are fully assembled with springs and valves Compression ratios vary depending on cylinder heads chosen, pistons used and engine displacement; see...

$1,911.95

$1,463.19

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S&S 93" Sidewinder Big Bore High Compression Gloss Black Stroker Kit (91-9130)

S&S 93" 3 5/8" Sidewinder big bore stroker kit is an economical route to a larger displacement engine. This kit contains nearly everying needed to take a stock 74" or 80" Harley shovelhead engine up to 93" displacement. This...

$3,795.95

$3,076.16

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