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S&S 97" Big Bore Kit For Harley Big Twin 1999-2006
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$789.95
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S&S 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
  • Made in the USA
  • 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
View Fitment Notes & Exceptions

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 19992006
Dyna Super Glide FXD/I 19992006
Dyna Super Glide Sport FXDX 19992005
Dyna Super Glide Sport Touring FXDXT 2001, 2002, 2003
Dyna Wide Glide FXDWG/I 19992006
Electra Glide Classic FLHTC/I 19992006
Electra Glide Standard FLHT/I 19992006
Electra Glide Ultra Classic FLHTCU/I 19992006
Fat Boy FLSTF/I 19992006
Heritage Softail Classic FLSTC/I 19992006
Heritage Softail FLST/I 2006
Heritage Springer FLSTS/I 1999, 2000, 2001, 2002, 2003
Night Train FXSTB/I 19992006
Road Glide FLTR/I 19992006
Road King Classic FLHRC/I 19992006
Road King Custom FLHRS/I 19992006
Road King FLHR/I 19992006
Softail Custom FXSTC/I 1999
Softail Custom/Nostalgia/Special/Deluxe FLSTN/I 2005, 2006
Softail Deuce FXSTD/I 19992006
Softail Springer Classic FLSTSC/I 2005, 2006
Softail Standard FXST/I 19992006
Springer Softail FXSTS/I 19992006
Street Bob FXDB/I 2006
Street Glide FLHX/I 2006
Super Glide Custom FXDC/I 2005, 2006
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S&S 97" Big Bore Kit For Harley Big Twin 1999-2006
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Product Style RevZilla SKU ID Manufacturer Product # Availability
Black 958763 9100205/910-0205 Available: Usually ships in 1-2 business days
Silver 958764 9100201/910-0201 Available: Usually ships in 1-2 business days