In stock
S&S Cycle Big Bore Forged Piston Kit — 3.937" Bore — 107" Twin Cam — Standard
- Pistons are compatible with stock rods with tapered wristpin ends
- Stock cylinders may be bored to accommodate larger piston
- Bore cylinders to nominal diameter +/- 0.0005" for correct clearance
$514.95
In stock. Ships in 2–4 business days · free shipping over $150.
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Questions? Call the shop: 801-361-3010
Real shop · real humans · 1231 N 1300 W Ste A, Centerville, UT 84014
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Description & features3 features
Works with 4-3/8" stroke flywheels to convert 96" or 103" to 107" displacement with 10.4:1 compression with stock heads.
Deck height is 1.085".
- Pistons are compatible with stock rods with tapered wristpin ends
- Stock cylinders may be bored to accommodate larger piston
- Bore cylinders to nominal diameter +/- 0.0005" for correct clearance
Specifications12 specs
- Bore Size
- 3.937"
- Riding Style
- Street
- Displacement
- 107"
- Piston Material
- Forged
- Style
- Big Bore
- Bore - Oversize
- Standard
- Units
- Kit
- Compression Ratio
- 10.4:1
- Stroke Length
- 4-3/8"
- Shipping weight
- 2.95 lb
- Package size
- 11.1 × 5.4 × 3.8 in
- Country of origin
- USA
Fitment58 models · Harley-Davidson
Harley-Davidson58 models
- Electra Glide Police FLHTPI2007–2016
- Electra Glide Ultra Classic Low FLHTCUL2014
- FLD Switchback2012–2016
- FLHR Road King2007–2016
- FLHRC Road King Classic2007–2013
- FLHRS Road King Custom2007
- FLHRSE3 Screamin Eagle Road King2007
- FLHRSE4 Screamin Eagle Road King2008
- FLHRSE5 CVO Road King2013
- FLHRSE6 CVO Road King2014
- FLHT Electra Glide Standard2007–2009
- FLHTC Electra Glide Classic2007–2013
- FLHTCU Electra Glide Ultra Classic2007–2016
- FLHTCUL Electra Glide Ultra Classic Low2015–2016
- FLHTCUSE2 Screamin Eagle Ultra Classic Electra Glide2007
- FLHTCUSE3 Screamin Eagle Ultra Classic Electra Glide2008
- FLHTCUSE4 CVO Ultra Classic Electra Glide2009
- FLHTCUSE5 CVO Ultra Classic Electra Glide2010
- FLHTCUSE6 CVO Ultra Classic Electra Glide2011
- FLHTCUSE7 CVO Ultra Classic Electra Glide2012
- FLHTCUSE8 CVO Ultra Classic Electra Glide2013
- FLHTK Ultra Limited2010–2016
- FLHTKL Ultra Limited Low2015–2016
- FLHTKSE CVO Limited2014–2016
- FLHX Street Glide2007–2016
- FLHXS Street Glide Special2014–2016
- FLHXSE CVO Street Glide2010, 2015–2016
- FLHXSE2 CVO Street Glide2011
- FLHXSE3 CVO Street Glide2012
- FLSTC Heritage Softail Classic2007
- FLSTF Fat Boy2007
- FLSTN Softail Deluxe2007
- FLSTSC Softail Springer Classic2007
- FLTR Road Glide2007–2010, 2016
- FLTRSE3 CVO Road Glide2009
- FLTRU Road Glide Ultra2011–2013, 2016
- FLTRUSE CVO Road Glide Ultra2011, 2015–2016
- FLTRX Road Glide2015
- FLTRX Road Glide Custom2011–2013
- FLTRXS Road Glide Special2015–2016
- FLTRXSE CVO Road Glide2012
- FLTRXSE2 CVO Road Glide Custom2013
- FXD Dyna Super Glide2007–2010
- FXDB Street Bob2007–2017
- FXDC Super Glide Custom2007–2014
- FXDF Fat Bob2008–2017
- FXDFSE CVO Dyna Fat Bob2009
- FXDFSE2 CVO Dyna Fat Bob2010
- FXDL Dyna Low Rider2007–2009, 2014–2017
- FXDLS Low Rider S2016–2017
- FXDSE Screamin Eagle Dyna2007
- FXDSE2 Screamin Eagle Dyna2008
- FXDWG Dyna Wide Glide2007–2008, 2010–2017
- FXST Softail Standard2007
- FXSTB Night Train2007
- FXSTC Softail Custom2007
- FXSTD Softail Deuce2007
- FXSTSSE Screamin Eagle Softail Springer2007
Fitment comes from the catalog data for this part. Double-check your year, model and trim before you order — or call the counter at 801-361-3010 and we’ll check it with you.
Part numbers
- Salto part #
- 0910-4526
- S&S Cycle part #
- 920-0100
Shipping
In stock. Ships in 2–4 business days by ground.
Ground shipping is $14.95, free on orders over $150. Stock is checked again before your card is charged.
Questions4 answers
- Is it in stock?
- Yes — it’s in stock right now. We check again the moment you order, before anything is charged.
- How fast will it get to me?
- Usually 2–4 business days by ground.
- Will it fit my machine?
- It’s listed for the models in the Fitment section above. Not sure about your trim or year? Call the counter at 801-361-3010 and we’ll check it with you.
- Is this genuine S&S Cycle?
- Yes. It’s new and genuine, straight from Salto — S&S Cycle part #920-0100.
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