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RevTech 125″ Engine

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Product may vary from photo(s).

Everyday Low Price: $4,999.99

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J&P Part: 420-357

Description

Important warranty information: Warranty Information

RevTech 125″ Engine

• BIG INCH MUSCLE!

• Cast from 356-T6 aluminum with wall thickness optimized for maximum strength

• Blind case bolts for cleaner appearance

• Smooth crankcase deck to cylinder base profile for cleaner appearance

• 7/16″ threaded cylinder studs proven in drag racing applications

• Flywheels forged from 4140

• Pinion and sprocket shaft are pressed in and keyed from 8620 gear material ground and hardened

• Connecting rods forged from 4340 chromoly steel - the strongest material available for these applications

• Larger straight 1-1/2″ diameter pressed-in crankpin using 8620 gear material

• Same reliable Evolution style oil system with the addition of internal piston oilers for better heat dissipation

• 3:1 ratio oil pump drive gears and high volume oil pump enable significantly increased lubrication and cooling

• 4.250″ -bore with 4.0410″ -stroke for ideal high torque/high horsepower output

• More fin edges for better appearance

• Forged JE slipper-skirt pistons

• New RevTech roller rockers

• New compression releases for easy starting

• New “D”-shaped intake ports and manifold

• Mikuni HSR 45 from Mikuni American Corp.

• Intake manifold matched to heads for ideal flow efficiency

• Low profile air cleaner design for high performance while providing improved rider comfort

• Self contained solid-state ignition from Daytona Twin Tec

• Andrews EV72 .560″ lift cam for great performance and easy starting

Product Specs

  • Finish: Natural aluminum
  • Sold in Units: Each

Fitment

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Harley-Davidson® Models

Dyna Low Rider Convertible FXDS : 1994–1998
Dyna Low Rider FXDL : 1993–1998
Dyna Super Glide Custom FXDC : 1992
Dyna Super Glide Daytona FXDB-D : 1992
Dyna Super Glide FXD : 1995–1998
Dyna Super Glide Sturgis FXDB-S : 1991
Dyna Wide Glide FXDWG : 1993–1998
Lowrider Belt FXSB : 1985
Softail Bad Boy FXSTSB : 1995–1997
Softail Custom FXSTC : 1984–1999
Softail Fat Boy FLSTF : 1990–1999
Softail Heritage Classic FLSTC : 1987–1999
Softail Heritage FLST : 1986–1990
Softail Heritage Springer FLSTS : 1997–1999
Softail Night Train FXSTB : 1998–1999
Softail Nostalgia FLSTN : 1993–1996
Softail Springer FXSTS : 1988–1999
Softail Standard FXST : 1984–1990, 1999
Super Glide 1st Edition FXR2 : 1999
Super Glide 2nd Edition FXR3 : 1999
Super Glide 3rd Edition FXR4 : 2000
Super Glide Custom FXRC : 1985
Super Glide Disc Glide FXRDG : 1984
Super Glide Fat Bob FXEF : 1985
Super Glide FXR : 1986–1994
Super Glide FXRS : 1986–1991
Super Glide Grand Touring FXRD : 1986
Super Glide II FXR : 1984–1985
Super Glide II FXRS : 1984–1985
Super Glide Low Rider Anniversary FXLR : 1987
Super Glide Low Rider Anniversary FXRS : 1988
Super Glide Low Rider Convertible FXRS : 1989–1993
Super Glide Low Rider FXLR : 1987–1994
Super Glide Low Rider FXRS : 1992–1994
Super Glide Low Rider Sport FXRS-SP : 1987–1993
Super Glide Police Model FXRP : 1984–1994
Super Glide Sport Glide FXRT : 1984–1992
Touring Electra Glide Classic Anniversary FLHTC : 1988
Touring Electra Glide Classic EFI FLHTCI : 1996–1998
Touring Electra Glide Classic FLHTC : 1984–1998
Touring Electra Glide FLH : 1985–1986
Touring Electra Glide Police FLHTP : 1986–1998
Touring Electra Glide Sport FLHS : 1987–1993
Touring Electra Glide Standard FLHT : 1984–1989, 1995–1998
Touring Electra Glide Ultra Classic EFI FLHTCUI : 1995–1998
Touring Electra Glide Ultra Classic FLHTCU : 1989–1998
Touring Road Glide EFI FLTRI : 1998
Touring Road Glide FLTR : 1998
Touring Road King Classic EFI FLHRCI : 1998
Touring Road King EFI FLHRI : 1996–1998
Touring Road King FLHR : 1994–1998
Touring Road King Police FLHP : 1996
Touring Road King Police FLHPI : 1996
Touring Road King Police FLHRP : 1997–1998
Touring Tour Glide Classic Anniversary FLTC : 1988
Touring Tour Glide Classic FLTC : 1984–1992
Touring Tour Glide FLT : 1984–1986
Touring Tour Glide Ultra Classic EFI FLTCUI : 1996
Touring Tour Glide Ultra Classic FLTCU : 1989–1995
Wide Glide FXWG : 1985–1986

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