Big Bore Cylinder Kit — 3.875", 95 cu in, 4.000"

S&S CYCLE Big Bore Cylinder Kit — 3.875", 95 cu in, 4.000" – 99-06 Touring, 00-06 CVO, 00-06 Softail, 99-05 Dyna

S&S CYCLE
0931-0432
910-0204
  • Big Bore performance upgrade with stock heads
  • Includes pistons, rings and gaskets
  • Simple swap installation; skilled technician required
  • Made in the USA; not for Twin Cooled motors
Hurry! only 24 items left in stock.
€1,284.15
€1,544.64
Save €260.49
VAT included
local_shipping In stock, ships in 2-3 days

Add to Compare
Add to Wishlist

The Big Bore kit yields excellent results with stock cylinder heads. 🔧

Easy installation — no need to bore or split existing cases; simply swap the cylinders unless otherwise noted.

Cylinders are made from premium castings with cast-in iron liners for long-term durability.

The kit includes cylinders, pistons, rings and gaskets (head, base and exhaust).

Made in the USA. Project requires a skilled technician; it is the assembler's responsibility to check all clearances and assembly specifications. Not for Twin Cooled motors.

: 0931-0432
In Stock

Data sheet

Units
Kit
Color/Finish
Black
Style
Big Bore
Brand
S&S CYCLE
Bore Size
3,875"
Displacement
95"
Stroke Length
4,000"
Compression Ratio
9.7:1
Material
Aluminum
Harley Family
CVO
Dyna
Softail
Touring

This product fits the following vehicles. Use the filters below to narrow down the list if needed.

Manufacturer Model Family Year Notes
Harley Davidson Road King Classic Touring 2004
Harley Davidson Road King Classic Touring 2003
Harley Davidson Road King Classic Touring 2006
Harley Davidson Road King Touring 1999
Harley Davidson Road King Custom Touring 2004
Harley Davidson Road King Custom Touring 2006
Harley Davidson Road King Screamin Eagle CVO 2002
Harley Davidson Road King Screamin Eagle CVO 2003
Harley Davidson Road King Custom Touring 2004
Harley Davidson Road King Custom Touring 2005
Harley Davidson Electra Glide Touring 2001
Harley Davidson Electra Glide Touring 2006
Harley Davidson Electra Glide Classic Touring 2003
Harley Davidson Electra Glide Classic Touring 2005
Harley Davidson Electra Glide Classic Touring 2005
Harley Davidson Electra Glide Screamin Eagle CVO 2005
Harley Davidson Electra Glide Ultra Classic Touring 1999
Harley Davidson Electra Glide Ultra Classic Touring 2000
Harley Davidson Electra Glide Ultra Classic Touring 2002
Harley Davidson Electra Glide Ultra Classic Touring 2004
Harley Davidson Electra Glide Ultra Classic Screamin Eagle CVO 2006
Harley Davidson Heritage Softail Softail 2006
Harley Davidson Heritage Softail Classic Softail 2000
Harley Davidson Heritage Softail Classic Softail 2002
Harley Davidson Heritage Softail Classic Softail 2005
Harley Davidson Heritage Softail Classic Softail 2002
Harley Davidson Heritage Softail Classic Softail 2006
Harley Davidson Fat Boy Softail 2005
Harley Davidson Fat Boy Softail 2006
Harley Davidson Fat Boy 15th Anniversary Softail 2005
Harley Davidson Fat Boy Screamin Eagle CVO 2005
Harley Davidson Fat Boy Screamin Eagle CVO 2006
Harley Davidson Softail Deluxe Softail 2005
Harley Davidson Softail Deluxe Softail 2006
Harley Davidson Heritage Softail Springer Softail 2001
Harley Davidson Heritage Softail Springer Softail 2002
Harley Davidson Softail Springer Classic Softail 2005
Harley Davidson Softail Springer Classic Softail 2006
Harley Davidson Softail Springer Classic Softail 2005
Harley Davidson Heritage Softail Springer Softail 2003
Harley Davidson Road Glide Touring 2001
Harley Davidson Road Glide Touring 2002
Harley Davidson Road Glide Touring 1999
Harley Davidson Road Glide Screamin Eagle CVO 2000
Harley Davidson Road Glide Screamin Eagle CVO 2001
Harley Davidson Dyna Super Glide Dyna 1999
Harley Davidson Dyna Super Glide Dyna 2002
Harley Davidson Dyna Super Glide Dyna 2004
Harley Davidson Dyna Super Glide Custom Dyna 2005
Harley Davidson Dyna Super Glide Custom Dyna 2005
Harley Davidson Dyna Low Rider Dyna 1999
Harley Davidson Dyna Low Rider Dyna 2000
Harley Davidson Dyna Low Rider Dyna 2002
Harley Davidson Dyna Low Rider Dyna 2003
Harley Davidson Dyna Low Rider Dyna 2004
Harley Davidson Dyna Low Rider Dyna 2005
Harley Davidson Dyna Wide Glide Dyna 1999
Harley Davidson Dyna Wide Glide Dyna 2000
Harley Davidson Dyna Wide Glide Dyna 2001
Harley Davidson Dyna Wide Glide Dyna 2002
Harley Davidson Dyna Wide Glide Dyna 2003
Harley Davidson Dyna Wide Glide Dyna 2004
Harley Davidson Dyna Wide Glide Dyna 2005
Harley Davidson Dyna Wide Glide Limited Edition CVO 2001
Harley Davidson Dyna Wide Glide Limited Edition CVO 2002
Harley Davidson Dyna Wide Glide Dyna 2004
Harley Davidson Dyna Wide Glide Dyna 2005
Harley Davidson Dyna Super Glide Sport Dyna 1999
Harley Davidson Dyna Super Glide Sport Dyna 2000
Harley Davidson Dyna Super Glide Sport Dyna 2001
Harley Davidson Dyna Super Glide Sport Dyna 2002
Harley Davidson Dyna Super Glide Sport Dyna 2003
Harley Davidson Dyna Super Glide Sport Dyna 2004
Harley Davidson Dyna Super Glide Sport Dyna 2004
Harley Davidson Dyna Super Glide Sport Dyna 2005
Harley Davidson Dyna Super Glide T-Sport Dyna 2001
Harley Davidson Dyna Super Glide T-Sport Dyna 2003
Harley Davidson Softail Softail 2003
Harley Davidson Softail Night Train Softail 2002
Harley Davidson Softail Night Train Softail 2003
Harley Davidson Softail Night Train Softail 2005
Harley Davidson Softail Deuce Softail 2001
Harley Davidson Softail Deuce Softail 2003
Harley Davidson Softail Deuce Softail 2005
Harley Davidson Softail Deuce Softail 2006
Harley Davidson Softail Deuce Softail 2001
Harley Davidson Softail Deuce Softail 2002
Harley Davidson Softail Deuce Softail 2004
Harley Davidson Softail Deuce Softail 2005
Harley Davidson Softail Deuce Screamin Eagle CVO 2003
Harley Davidson Softail Deuce Screamin Eagle CVO 2004
Harley Davidson Softail Softail 2003
Harley Davidson Softail Softail 2005
Harley Davidson Softail Springer Softail 2000
Harley Davidson Softail Springer Softail 2002
Harley Davidson Softail Springer Softail 2003
Harley Davidson Softail Springer Softail 2004
Harley Davidson Softail Springer Softail 2005
Harley Davidson Softail Springer Softail 2004
Harley Davidson Softail Springer Softail 2005