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S&S 97" Big Bore Kit For Harley Big Twin 1999-2006
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  • S&S 97" Big Bore Kit For Harley Big Twin 1999-2006 - Black
  • S&S 97" Big Bore Kit For Harley Big Twin 1999-2006 - Silver

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Video Reviews (2)

S&S 97" Big Bore Kit For Harley Big Twin 1999-2006 Videos

S&S Cycle 97" 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" stroke, 97" displacement, 9.7:1 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

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
This Product Fits:
Harley Davidson
Dyna Convertible FXDS 1999, 2000
Dyna Low Rider FXDL/I 1999–2006
Dyna Street Bob FXDB/I 2006
Dyna Super Glide Custom FXDC/I 2005, 2006
Dyna Super Glide FXD/I 1999–2006
Dyna Super Glide Sport FXDX 1999–2005
Dyna Super Glide Sport Touring FXDXT 2001, 2002, 2003
Dyna Wide Glide FXDWG/I 1999–2006
Electra Glide Classic FLHTC/I 1999–2006
Electra Glide Standard FLHT/I 1999–2006
Electra Glide Ultra Classic FLHTCU/I 1999–2006
Road Glide FLTR/I 1999–2006
Road King Classic FLHRC/I 1999–2006
Road King Custom FLHRS/I 1999–2006
Road King FLHR/I 1999–2006
Softail Custom FXSTC/I 1999
Softail Custom/Nostalgia/Special/Deluxe FLSTN/I 2005, 2006
Softail Deuce FXSTD/I 1999–2006
Softail Fat Boy FLSTF/I 1999–2006
Softail Heritage Classic FLSTC/I 1999–2006
Softail Heritage FLST/I 2006
Softail Heritage Springer FLSTS/I 1999, 2000, 2001, 2002, 2003
Softail Night Train FXSTB/I 1999–2006
Softail Springer Classic FLSTSC/I 2005, 2006
Softail Springer FXSTS/I 1999–2006
Softail Standard FXST/I 1999–2006
Street Glide FLHX/I 2006
Product Style RevZilla Item # Manufacturer Product # Availability
Black 958763 910-0205 In Stock: Ships within 24 hours
Silver 958764 910-0201 In Stock: Ships within 24 hours

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Browse 5 questions Browse 5 questions and 4 answers
What cams are the best fit for this kit?
A shopper on Jul 28, 2015
BEST ANSWER: Would 509 cam work I want low end torque
do I have to get the cranck case bored?
A shopper on Nov 25, 2014
BEST ANSWER: Shouldn't have to. The 4" stroke is the stock size on the 88's. You can go up to 98" before needing to break the cases.
This works for 2000 Harley 88b motor?
A shopper on Dec 3, 2016
BEST ANSWER: yes it does
Will the S&S 82CC PERFORMANCE HEADS work with these kits?
A shopper on Feb 6, 2016
do I have to get the crank case cut?
A shopper on Nov 25, 2014
BEST ANSWER: no, you can go up to 98" before having too