Cylinder Kit - Monster Big Bore - 100" - Natural - Evolution Big Twin '84-'99
Features
- Aerospace-grade all-aluminum cylinders with nickel-silicon-carbide (NSC) electroplated bores
- No sleeving allows for larger bore sizes
- NSC-plated cylinders have less frisction for increased horsepower, lower engine temperatures and longer lifespan
- Includes pair of all-aluminum NSC-coated bore cylinders, custom forged pistons with high-tension rings specifically designed for NSC cylinders, wrist pins, circlips and a head/base gasket set
- Made in the USA
- Will require case boring, which is not recommended on OEM cases '95-earlier; some may require a 4-5/8" stroke crank.
- Upgraded cylinder studs and head bolts recommended.
- Replacement gasket sets and piston kits available separately.
Specs
| Units | Kit |
| Model | Monster |
| Stroke Length | 4-1/4" |
| Cylinder Bore Coating | Nickel-Silicon Carbide |
| Compression Ratio | 9.5:1 |
| Material | Aluminum |
| Bore Size | 3-7/8" |
| Color/Finish | Natural Aluminum |
| Product Name | Cylinder Kit |
| Type | Big Bore |
| Displacement | 100" |
| Riding Style | Street |
| Year | Make | Model |
|---|---|---|
| 1984 | Harley-Davidson | Electra Glide Police FLHTP |
| 1984 | Harley-Davidson | Electra Glide Standard FLHT |
| 1984 | Harley-Davidson | FLH Electra Glide |
| 1984 | Harley-Davidson | FLHTC Electra Glide Classic |
| 1984 | Harley-Davidson | FLHX Electra Glide Special |
| 1984 | Harley-Davidson | FLTC Tour Glide Classic |
| 1984 | Harley-Davidson | FXRDG Disc Glide |
| 1984 | Harley-Davidson | FXRP |
| 1984 | Harley-Davidson | FXRS Low Glide |
| 1984 | Harley-Davidson | FXRT Sport Glide |
| 1984 | Harley-Davidson | FXST Softail Standard |
| 1984 | Harley-Davidson | Tour Glide FLT |
| 1985 | Harley-Davidson | Electra Glide Police FLHTP |
| 1985 | Harley-Davidson | Electra Glide Standard FLHT |
| 1985 | Harley-Davidson | FLH Electra Glide |
| 1985 | Harley-Davidson | FLHTC Electra Glide Classic |
| 1985 | Harley-Davidson | FLHX Electra Glide Special |
| 1985 | Harley-Davidson | FLTC Tour Glide Classic |
| 1985 | Harley-Davidson | FXRC Low Rider Chrome |
| 1985 | Harley-Davidson | FXRP |
| 1985 | Harley-Davidson | FXRS Low Glide |
| 1985 | Harley-Davidson | FXRT Sport Glide |
| 1985 | Harley-Davidson | FXST Softail Standard |
| 1985 | Harley-Davidson | Tour Glide FLT |
| 1986 | Harley-Davidson | Electra Glide Police FLHTP |
| 1986 | Harley-Davidson | FLHT Electra Glide Standard |
| 1986 | Harley-Davidson | FLHTC Electra Glide Classic |
| 1986 | Harley-Davidson | FLST Heritage Softail |
| 1986 | Harley-Davidson | FLTC Tour Glide Classic |
| 1986 | Harley-Davidson | FXR Super Glide II |
| 1986 | Harley-Davidson | FXRD Sport Glide Grand Touring |
| 1986 | Harley-Davidson | FXRP |
| 1986 | Harley-Davidson | FXRS Low Glide |
| 1986 | Harley-Davidson | FXRS-SP Low Rider Sport |
| 1986 | Harley-Davidson | FXRT Sport Glide |
| 1986 | Harley-Davidson | FXST Softail Standard |
| 1986 | Harley-Davidson | FXSTC Softail Custom |
| 1986 | Harley-Davidson | Softail Heritage Classic FLSTC |
| 1986 | Harley-Davidson | Tour Glide FLT |
| 1987 | Harley-Davidson | Electra Glide Police FLHTP |
| 1987 | Harley-Davidson | FLHS Electra Glide Sport |
| 1987 | Harley-Davidson | FLHT Electra Glide Standard |
| 1987 | Harley-Davidson | FLHTC Electra Glide Classic |
| 1987 | Harley-Davidson | FLST Heritage Softail |
| 1987 | Harley-Davidson | FLTC Tour Glide Classic |
| 1987 | Harley-Davidson | FXLR Low Rider Custom |
| 1987 | Harley-Davidson | FXR Super Glide II |
| 1987 | Harley-Davidson | FXRC Low Rider Chrome |
| 1987 | Harley-Davidson | FXRP |
| 1987 | Harley-Davidson | FXRS Low Glide |
| 1987 | Harley-Davidson | FXRS-SP Low Rider Sport |
| 1987 | Harley-Davidson | FXRT Sport Glide |
| 1987 | Harley-Davidson | FXST Softail Standard |
| 1987 | Harley-Davidson | FXSTC Softail Custom |
| 1987 | Harley-Davidson | Softail Heritage Classic FLSTC |
| 1988 | Harley-Davidson | Electra Glide Police FLHTP |
| 1988 | Harley-Davidson | FLHS Electra Glide Sport |
| 1988 | Harley-Davidson | FLHTC Electra Glide Classic |
| 1988 | Harley-Davidson | FLST Heritage Softail |
| 1988 | Harley-Davidson | FLSTC Heritage Softail Classic |
| 1988 | Harley-Davidson | FLTC Tour Glide Classic |
| 1988 | Harley-Davidson | FXLR Low Rider Custom |
| 1988 | Harley-Davidson | FXR Super Glide II |
| 1988 | Harley-Davidson | FXRP |
| 1988 | Harley-Davidson | FXRS Low Glide |
| 1988 | Harley-Davidson | FXRS-SP Low Rider Sport |
| 1988 | Harley-Davidson | FXRT Sport Glide |
| 1988 | Harley-Davidson | FXST Softail Standard |
| 1988 | Harley-Davidson | FXSTC Softail Custom |
| 1988 | Harley-Davidson | FXSTS Springer Softail |
| 1989 | Harley-Davidson | Electra Glide Police FLHTP |
| 1989 | Harley-Davidson | FLHS Electra Glide Sport |
| 1989 | Harley-Davidson | FLHTC Electra Glide Classic |
| 1989 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic |
| 1989 | Harley-Davidson | FLST Heritage Softail |
| 1989 | Harley-Davidson | FLSTC Heritage Softail Classic |
| 1989 | Harley-Davidson | FLTC Tour Glide Classic |
| 1989 | Harley-Davidson | FLTCU Tour Glide Ultra Classic |
| 1989 | Harley-Davidson | FXLR Low Rider Custom |
| 1989 | Harley-Davidson | FXR Super Glide II |
| 1989 | Harley-Davidson | FXRP |
| 1989 | Harley-Davidson | FXRS-SP Low Rider Sport |
| 1989 | Harley-Davidson | FXRT Sport Glide |
| 1989 | Harley-Davidson | FXST Softail Standard |
| 1989 | Harley-Davidson | FXSTC Softail Custom |
| 1989 | Harley-Davidson | FXSTS Springer Softail |
| 1989 | Harley-Davidson | Low Rider FXRS |
| 1990 | Harley-Davidson | Electra Glide Police FLHTP |
| 1990 | Harley-Davidson | FLHS Electra Glide Sport |
| 1990 | Harley-Davidson | FLHTC Electra Glide Classic |
| 1990 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic |
| 1990 | Harley-Davidson | FLST Heritage Softail |
| 1990 | Harley-Davidson | FLSTC Heritage Softail Classic |
| 1990 | Harley-Davidson | FLSTF Fat Boy |
| 1990 | Harley-Davidson | FLTC Tour Glide Classic |
| 1990 | Harley-Davidson | FLTCU Tour Glide Ultra Classic |
| 1990 | Harley-Davidson | FXLR Low Rider Custom |
| 1990 | Harley-Davidson | FXR Super Glide II |
| 1990 | Harley-Davidson | FXRP |
| 1990 | Harley-Davidson | FXRS-Conv Low Rider Sport Convertible |
| 1990 | Harley-Davidson | FXRS-SP Low Rider Sport |
| 1990 | Harley-Davidson | FXRT Sport Glide |
| 1990 | Harley-Davidson | FXST Softail Standard |
| 1990 | Harley-Davidson | FXSTC Softail Custom |
| 1990 | Harley-Davidson | FXSTS Springer Softail |
| 1990 | Harley-Davidson | Low Rider FXRS |
| 1991 | Harley-Davidson | Electra Glide Police FLHTP |
| 1991 | Harley-Davidson | FLHS Electra Glide Sport |
| 1991 | Harley-Davidson | FLHTC Electra Glide Classic |
| 1991 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic |
| 1991 | Harley-Davidson | FLSTC Heritage Softail Classic |
| 1991 | Harley-Davidson | FLSTF Fat Boy |
| 1991 | Harley-Davidson | FLTC Tour Glide Classic |
| 1991 | Harley-Davidson | FLTCU Tour Glide Ultra Classic |
| 1991 | Harley-Davidson | FXDB-S Dyna Glide Sturgis |
| 1991 | Harley-Davidson | FXLR Low Rider Custom |
| 1991 | Harley-Davidson | FXR Super Glide II |
| 1991 | Harley-Davidson | FXRP |
| 1991 | Harley-Davidson | FXRS Low Glide |
| 1991 | Harley-Davidson | FXRS-Conv Low Rider Sport Convertible |
| 1991 | Harley-Davidson | FXRS-SP Low Rider Sport |
| 1991 | Harley-Davidson | FXRT Sport Glide |
| 1991 | Harley-Davidson | FXST Softail Standard |
| 1991 | Harley-Davidson | FXSTC Softail Custom |
| 1991 | Harley-Davidson | FXSTS Springer Softail |
| 1992 | Harley-Davidson | Electra Glide Police FLHTP |
| 1992 | Harley-Davidson | FLHS Electra Glide Sport |
| 1992 | Harley-Davidson | FLHTC Electra Glide Classic |
| 1992 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic |
| 1992 | Harley-Davidson | FLSTC Heritage Softail Classic |
| 1992 | Harley-Davidson | FLSTF Fat Boy |
| 1992 | Harley-Davidson | FLTC Tour Glide Classic |
| 1992 | Harley-Davidson | FLTCU Tour Glide Ultra Classic |
| 1992 | Harley-Davidson | FXDB-D Dyna Glide Daytona |
| 1992 | Harley-Davidson | FXDC Super Glide Custom |
| 1992 | Harley-Davidson | FXST Softail Standard |
| 1992 | Harley-Davidson | FXSTC Softail Custom |
| 1992 | Harley-Davidson | FXSTS Springer Softail |
| 1993 | Harley-Davidson | Electra Glide Police FLHTP |
| 1993 | Harley-Davidson | FLHS Electra Glide Sport |
| 1993 | Harley-Davidson | FLHTC Electra Glide Classic |
| 1993 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic |
| 1993 | Harley-Davidson | FLSTC Heritage Softail Classic |
| 1993 | Harley-Davidson | FLSTF Fat Boy |
| 1993 | Harley-Davidson | FLSTN Heritage Softail Nostalgia |
| 1993 | Harley-Davidson | FLTC Tour Glide Classic |
| 1993 | Harley-Davidson | FLTCU Tour Glide Ultra Classic |
| 1993 | Harley-Davidson | FXDL Dyna Low Rider |
| 1993 | Harley-Davidson | FXDWG Dyna Wide Glide |
| 1993 | Harley-Davidson | FXST Softail Standard |
| 1993 | Harley-Davidson | FXSTC Softail Custom |
| 1993 | Harley-Davidson | FXSTS Springer Softail |
| 1994 | Harley-Davidson | Electra Glide Police FLHTP |
| 1994 | Harley-Davidson | FLHR Road King |
| 1994 | Harley-Davidson | FLHTC Electra Glide Classic |
| 1994 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic |
| 1994 | Harley-Davidson | FLSTC Heritage Softail Classic |
| 1994 | Harley-Davidson | FLSTF Fat Boy |
| 1994 | Harley-Davidson | FLSTN Heritage Softail Special |
| 1994 | Harley-Davidson | FLTCU Tour Glide Ultra Classic |
| 1994 | Harley-Davidson | FXDL Dyna Low Rider |
| 1994 | Harley-Davidson | FXDWG Dyna Wide Glide |
| 1994 | Harley-Davidson | FXST Softail Standard |
| 1994 | Harley-Davidson | FXSTC Softail Custom |
| 1994 | Harley-Davidson | FXSTS Springer Softail |
| 1994 | Harley-Davidson | Tour Glide Classic FLTC |
| 1995 | Harley-Davidson | Electra Glide Classic EFI FLHTCI |
| 1995 | Harley-Davidson | Electra Glide Police FLHTPI |
| 1995 | Harley-Davidson | Electra Glide Police FLHTP |
| 1995 | Harley-Davidson | FLHR Road King |
| 1995 | Harley-Davidson | FLHT Electra Glide Standard |
| 1995 | Harley-Davidson | FLHTC Electra Glide Classic |
| 1995 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic |
| 1995 | Harley-Davidson | FLHTCUI Electra Glide Ultra Classic |
| 1995 | Harley-Davidson | FLSTC Heritage Softail Classic |
| 1995 | Harley-Davidson | FLSTF Fat Boy |
| 1995 | Harley-Davidson | FLSTN Heritage Softail Special |
| 1995 | Harley-Davidson | FLTCU Tour Glide Ultra Classic |
| 1995 | Harley-Davidson | FXD Dyna Super Glide |
| 1995 | Harley-Davidson | FXDL Dyna Low Rider |
| 1995 | Harley-Davidson | FXDS-Conv Dyna Convertible |
| 1995 | Harley-Davidson | FXDWG Dyna Wide Glide |
| 1995 | Harley-Davidson | FXST Softail Standard |
| 1995 | Harley-Davidson | FXSTC Softail Custom |
| 1995 | Harley-Davidson | FXSTS Springer Softail |
| 1995 | Harley-Davidson | FXSTSB Bad Boy |
| 1995 | Harley-Davidson | Road King Classic EFI FLHRC |
| 1995 | Harley-Davidson | Road King EFI FLHR |
| 1996 | Harley-Davidson | Electra Glide Police FLHTPI |
| 1996 | Harley-Davidson | Electra Glide Police FLHTP |
| 1996 | Harley-Davidson | FLHR Road King |
| 1996 | Harley-Davidson | FLHRI Road King |
| 1996 | Harley-Davidson | FLHT Electra Glide Standard |
| 1996 | Harley-Davidson | FLHTC Electra Glide Classic |
| 1996 | Harley-Davidson | FLHTCI Electra Glide Classic |
| 1996 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic |
| 1996 | Harley-Davidson | FLHTCUI Electra Glide Ultra Classic |
| 1996 | Harley-Davidson | FLSTC Heritage Softail Classic |
| 1996 | Harley-Davidson | FLSTF Fat Boy |
| 1996 | Harley-Davidson | FLSTN Heritage Softail Special |
| 1996 | Harley-Davidson | FLTCUI Tour Glide Ultra Classic |
| 1996 | Harley-Davidson | FXD Dyna Super Glide |
| 1996 | Harley-Davidson | FXDL Dyna Low Rider |
| 1996 | Harley-Davidson | FXDS-Conv Dyna Convertible |
| 1996 | Harley-Davidson | FXDWG Dyna Wide Glide |
| 1996 | Harley-Davidson | FXST Softail Standard |
| 1996 | Harley-Davidson | FXSTC Softail Custom |
| 1996 | Harley-Davidson | FXSTS Springer Softail |
| 1996 | Harley-Davidson | FXSTSB Bad Boy |
| 1996 | Harley-Davidson | Road King Classic EFI FLHRC |
| 1996 | Harley-Davidson | Tour Glide Ultra Classic FLTCU |
| 1997 | Harley-Davidson | Electra Glide Police FLHTPI |
| 1997 | Harley-Davidson | Electra Glide Police FLHTP |
| 1997 | Harley-Davidson | FLHR Road King |
| 1997 | Harley-Davidson | FLHRI Road King |
| 1997 | Harley-Davidson | FLHT Electra Glide Standard |
| 1997 | Harley-Davidson | FLHTC Electra Glide Classic |
| 1997 | Harley-Davidson | FLHTCI Electra Glide Classic |
| 1997 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic |
| 1997 | Harley-Davidson | FLHTCUI Electra Glide Ultra Classic |
| 1997 | Harley-Davidson | FLSTC Heritage Softail Classic |
| 1997 | Harley-Davidson | FLSTF Fat Boy |
| 1997 | Harley-Davidson | FLSTS Heritage Springer |
| 1997 | Harley-Davidson | FXD Dyna Super Glide |
| 1997 | Harley-Davidson | FXDL Dyna Low Rider |
| 1997 | Harley-Davidson | FXDS-Conv Dyna Convertible |
| 1997 | Harley-Davidson | FXDWG Dyna Wide Glide |
| 1997 | Harley-Davidson | FXST Softail Standard |
| 1997 | Harley-Davidson | FXSTC Softail Custom |
| 1997 | Harley-Davidson | FXSTS Springer Softail |
| 1997 | Harley-Davidson | FXSTSB Bad Boy |
| 1997 | Harley-Davidson | Road King Classic EFI FLHRC |
| 1998 | Harley-Davidson | Electra Glide Police FLHTPI |
| 1998 | Harley-Davidson | Electra Glide Police FLHTP |
| 1998 | Harley-Davidson | Electra Glide Ultra Classic FLHTCU |
| 1998 | Harley-Davidson | FLHR Road King |
| 1998 | Harley-Davidson | FLHRCI Road King Classic |
| 1998 | Harley-Davidson | FLHT Electra Glide Standard |
| 1998 | Harley-Davidson | FLHTC Electra Glide Classic |
| 1998 | Harley-Davidson | FLHTCI Electra Glide Classic |
| 1998 | Harley-Davidson | FLHTCUI Electra Glide Ultra Classic |
| 1998 | Harley-Davidson | FLSTC Heritage Softail Classic |
| 1998 | Harley-Davidson | FLSTF Fat Boy |
| 1998 | Harley-Davidson | FLSTS Heritage Springer |
| 1998 | Harley-Davidson | FLTR Road Glide |
| 1998 | Harley-Davidson | FLTRI Road Glide |
| 1998 | Harley-Davidson | FXD Dyna Super Glide |
| 1998 | Harley-Davidson | FXDL Dyna Low Rider |
| 1998 | Harley-Davidson | FXDS-Conv Dyna Convertible |
| 1998 | Harley-Davidson | FXDWG Dyna Wide Glide |
| 1998 | Harley-Davidson | FXST Softail Standard |
| 1998 | Harley-Davidson | FXSTC Softail Custom |
| 1998 | Harley-Davidson | FXSTS Springer Softail |
| 1998 | Harley-Davidson | Road King EFI FLHR |
| 1999 | Harley-Davidson | FLSTC Heritage Softail Classic |
| 1999 | Harley-Davidson | FLSTF Fat Boy |
| 1999 | Harley-Davidson | FLSTS Heritage Springer |
| 1999 | Harley-Davidson | FXST Softail Standard |
| 1999 | Harley-Davidson | FXSTB Night Train |
| 1999 | Harley-Davidson | FXSTC Softail Custom |
| 1999 | Harley-Davidson | FXSTS Springer Softail |
Fitment details provided by supplier.
Product Videos
Custom Field
Type Big Bore
Color/Finish Natural Aluminum
Material Aluminum
