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S&S 106" Big Bore Kit For Harley Big Twin 2007-2017

Item: P273208
$850.95

This product is vehicle specific. Please to ensure fitment.

Learn More

Product Details

S&S Cycle 106" Big-Bore Kit For Harley Big Twin

You know the saying - "There's no replacement for displacement!"

Features:

  • Kit yields excellent results with stock cylinder heads
  • Features the largest bore (3.927") that can safely be used in a cylinder with stock spigot diameter
  • Even though stock cylinders can be bored to fit the 3.927" pistons, the included S&S cylinders feature a much stronger liner to stand up to the added power
  • Easy installation: no need to bore or split existing cases, just swap the cylinders
  • Specifications: 3.927" bore, 4 3/8" stroke, 106" displacement, 10:1 compression ratio with stock heads
  • Kits include cylinders, pistons, rings and gaskets (head, base and exhaust)
  • Black or silver powder-coat finish
  • Increased fin area for better heat dissipation
  • Valve pocket recessed in S&S pistons are enlarged for oversize valves and higher lift cams
  • Maintains stock engine height and stock piston weight
  • Made in the USA
Product Style RevZilla Item # MFR. Product # Availability
Product Style Black RevZilla Item #958442 MFR. Product #910-0206 AvailabilityIn Stock: Ships next business day
Product Style Silver RevZilla Item #958443 MFR. Product #910-0202 AvailabilityIn Stock: Ships next business day

This product is vehicle specific. Please to ensure fitment.

Fitment Notes & Exceptions
  • These parts require a good deal of technical skill to install correctly - it is the responsibility of the person assembling the parts to check all clearances and assembly specifications
  • S&S highly recommends installing a performance cam for easier starting and better engine performance
  • These kits require tuning - when used on EFI models, S&S recommends the Dynojet Power Vision flash tuner
Harley Davidson
Dyna Fat Bob FXDF 2008-2017
Dyna Low Rider FXDL/I 2007-2017
Dyna Street Bob FXDB/I 2007-2017
Dyna Super Glide Custom FXDC/I 2007-2014
Dyna Super Glide FXD/I 2007, 2008, 2009, 2010
Dyna Switchback FLD 2012, 2013, 2014, 2015, 2016
Dyna Wide Glide FXDWG/I 2007-2017
Electra Glide Classic FLHTC/I 2007-2013
Electra Glide Standard FLHT/I 2007, 2008, 2009
Electra Glide Ultra Classic FLHTCU/I 2007-2016
Electra Glide Ultra Classic Low FLHTCUL 2015, 2016
Electra Glide Ultra Limited FLHTK 2010-2016
Electra Glide Ultra Limited Low FLHTKL 2015, 2016
Freewheeler FLRT 2015, 2016
Road Glide Custom FLTRX 2010, 2011, 2012, 2013
Road Glide FLTR/I 2007, 2008, 2009
Road Glide FLTRX 2015, 2016
Road Glide Special FLTRXS 2015, 2016
Road Glide Ultra FLTRU 2011, 2012, 2013
Road King Classic FLHRC/I 2007-2013
Road King Custom FLHRS/I 2007-2012
Road King FLHR/I 2007-2016
Softail Blackline FXS 2011, 2012, 2013
Softail Breakout FXSB 2013, 2014, 2015, 2016, 2017
Softail Cross Bones Springer FLSTSB 2008, 2009, 2010, 2011
Softail Custom FXSTC/I 2007, 2008, 2009, 2010
Softail Custom/Nostalgia/Special/Deluxe FLSTN/I 2007-2017
Softail Deuce FXSTD/I 2007
Softail Fat Boy FLSTF/I 2007-2017
Softail Fat Boy Lo FLSTFB 2009-2016
Softail Fat Boy S FLSTFBS 2016, 2017
Softail Heritage Classic FLSTC/I 2007-2017
Softail Night Train FXSTB/I 2007, 2008, 2009
Softail Rocker C FXCWC 2007, 2008, 2009, 2010, 2011
Softail Rocker FXCW 2008, 2009, 2010, 2011
Softail Slim FLS 2012-2017
Softail Slim S FLSS 2016, 2017
Softail Springer Classic FLSTSC/I 2007
Softail Standard FXST/I 2007-2012
Street Glide FLHX/I 2007-2016
Street Glide Special FLHXS 2014, 2015, 2016
Street Glide Trike FLHXXX 2010, 2011
Tri Glide Ultra Classic FLHTCUTG 2009, 2010, 2011, 2012, 2013

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If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

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Product Description
Part Numbers
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Fitment
Tap To View Fitment Details
Shipping & Returns
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Related Video

S&S Air, Fuel & Intake for Harley Review

Reviews & Questions

5.0 / 5.0
1 Review
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Bang For The Buck
5.0 / 5
Features
5.0 / 5
Style
5.0 / 5
Ease Of Install
2.0 / 5
Fit & Finish
5.0 / 5
Durability
5.0 / 5
Bang For The Buck
5 / 5
Features
5 / 5
Style
5 / 5
Ease Of Install
2 / 5
Fit & Finish
5 / 5
Durability
5 / 5
S&S 106 Big Bore Kit rocks
I had one of these on my Springer and it was too cool. I had literally the same output as on my current CVO Dyna at 110" with a cam! I love my Dyna, but I miss my S&S 106. I highly recommend it.
September 18, 2017
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 8 questions Browse 8 questions
I have SE 103+ heads and want to run a 10.5 comp. can this kit be modified to come with the higher rate pistons?
A shopper on Mar 31, 2015
should I ad cams to this kit? if so which is the best cam
A C on Dec 29, 2016
I have a 2015 Harley Davidson Road King, will I have to gap the piston rings? Or are they already gapped and ready to install? Thank you.
Leonardo M on Sep 28, 2016
using this kit for a road glide 2010. would that require a cam and if so which one would be better???
A shopper on Feb 14, 2017
The pictures don't show any gaskets. Do gaskets come with this or is there a set of gaskets sold on here specifically for this build?
A C on Dec 3, 2016
Could I also add compressor heads on top of this for more performance ?
A shopper on Aug 11, 2016
I think says for 2017, but my bike is not listed?
A C on Nov 7, 2016
I have S&S 79 heads, does this fit the heads I have.. ?for 2015 Harley softail
jason z on Jul 18, 2017
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