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S&S Cycle SH103 SH Series engine

Manufacturer Part Number 31-9919

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  • S&S Cycle SH103 SH Series engine
Product may vary from photo(s).

$7,266.99

Additional Freight Charges: $125.00 An additional shipping charge of $125.00 will be applied for shipments within the contiguous U.S. Additional oversized shipping charges will be applied for expedited shipments within the contiguous U.S. Shipping charges outside the contiguous U.S. are calculated by weight and dimension during checkout.

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Out of Stock in Retail Center Anamosa, IA
Out of Stock in Retail Center Daytona, FL
Out of Stock in Retail Center Sturgis, SD

J&P Part: 433-036

Description for S&S Cycle SH103 SH Series engine 

S&S Cycle SH103 SH Series engine

Fitment Note: Fits these chassis when a custom engine is required.

• This engine is based on the long standing 103 Shovelhead style Sidewinder kit, which has been in the S&S catalog since 1976

• The 103 is similar to our other Shovelhead style S&S engines, just bigger

• Features S&S Super Stock crankcases, S&S forged steel flywheels and connecting rods, S&S billet tappet guides with Evolution style S&S tappets, S&S Quickee pushrods, S&S billet rocker boxes, S&S forged roller rocker arms, and S&S 3-5/8″ bore, engineering grade, cast iron, 3-5/8″ bore cylinders with forged pistons

• Due to the displacement and compression ratio, an S&S Super ‘G’ carb and S&S dual-plugged heads come as standard equipment

• The 103 is only offered in 1970-84 Alternator style, and comes with the S&S Super Stock Ignition System

• The 103″ Shovelhead style S&S engine is .300″ taller than a stock Shovelhead, which means that it's not going to fit in a stock frame. Stock frames need to be modified to accommodate the extra engine height

• Although the engine life of a 103 is surprisingly good for a 5″ stroke motor, this is not a 50,000 mile engine there is a trade off- engine life for performance

• To maximize engine life, all Shovelhead style S&S engines are built with the finest components, S&S forged steel connecting rods and flywheels are the industry standard for strength and durability, and high tensile cast iron cylinders are super strong and extremely wear resistant

• Engines Specifications are 3-5/8″ Bore, 5″ Stroke, 103″ Displacement, S&S Forged Piston Type, 10.7:1 Compression Ratio

• Covered by a 2- year parts and labor warranty

• S&S engine are shipped without oil

Product Specs

Alternator or Generator: Alternator

Displacement Size CI: 103″

Ignition: Yes

Manufacturer Part Number: 31-9919

Material: forged steel

Material Processing Method: forged

Rocker Box Material: billet rocker boxes

Single or Dual Plugs: Dual Plugs

Standard or Big Bore: 35/8″ bore

Stroker: .300″ taller than a stock

Style: Shovelhead

Fitment for S&S Cycle SH103 SH Series engine 

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Fitment Note: Fits these chassis when a custom engine is required.

Click (+) to view all compatible models

Harley-Davidson® Models

Disc Glide Willie G Special FXDG : 1983
Dyna Low Rider Convertible FXDS-CONV : 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
Electra Glide Anniversary FLH : 1978
Electra Glide Classic FLHC : 1979–1982
Electra Glide Classic FLHTC : 1983
Electra Glide Classic Side Car FLHCE : 1979–1981
Electra Glide Fat Bob FLHFB : 1970
Electra Glide FLB : 1970
Electra Glide FLBF : 1970
Electra Glide FLH : 1970–1978, 1981–1984
Electra Glide FLH-74 : 1980
Electra Glide FLH-80 : 1978–1980
Electra Glide FLHB : 1970
Electra Glide FLHF : 1970–1975
Electra Glide Heritage FLH : 1981
Electra Glide Police FLHP : 1981
Electra Glide Police FLHP-74 : 1979–1980
Electra Glide Police FLHP-80 : 1979–1980
Electra Glide Police FLP : 1971–1972, 1974–1975
Electra Glide Police FLPF : 1971–1972
Electra Glide Special Edition FLHX : 1984
Electra Glide Sport FLHS : 1977, 1980–1984
Electra Glide Standard FLHT : 1983–1984
Low Rider FXS : 1977–1978, 1981–1982
Low Rider FXS-74 : 1979–1980
Low Rider FXS-80 : 1979–1980
Low Rider FXSB : 1983–1985
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
Sturgis Belt FXB : 1980–1982
Super Glide Custom FXRC : 1985
Super Glide Disc Glide FXRDG : 1984
Super Glide Electric Start FXE : 1974–1984
Super Glide Fat Bob FXEF : 1980–1985
Super Glide Fat Bob FXEF 74CI : 1979
Super Glide Fat Bob FXEF 80CI : 1979
Super Glide FXR : 1986–1994
Super Glide FXR2 : 1999
Super Glide FXR3 : 1999
Super Glide FXR4 : 2000
Super Glide Grand Touring FXRD : 1986
Super Glide II FXR : 1982–1985
Super Glide Kick Start FX : 1971–1978
Super Glide Low Rider Anniversary FXRS : 1988
Super Glide Low Rider Convertible FXRS-CONV : 1989–1993
Super Glide Low Rider Custom Anniversary FXLR : 1987
Super Glide Low Rider Custom FXLR : 1987–1994
Super Glide Low Rider FXRS : 1982–1992
Super Glide Low Rider Sport FXRS-SP : 1987–1993
Super Glide Police FXRP : 1984–1994
Super Glide Sport Glide FXRT : 1983–1992
Tour Glide Classic FLTC : 1981–1983
Tour Glide FLT : 1980–1984
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 Police FLHTP : 1986–1998
Touring Electra Glide Sport FLHS : 1987–1993
Touring Electra Glide Standard FLHT : 1985–1990, 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 : 1996–1998
Touring Road King Police FLHPI : 1996
Touring Tour Glide Classic Anniversary FLTC : 1988
Touring Tour Glide Classic FLTC : 1984–1992
Touring Tour Glide FLT : 1985–1986
Touring Tour Glide Ultra Classic EFI FLTCUI : 1996
Touring Tour Glide Ultra Classic FLTCU : 1989–1995
Wide Glide FXWG : 1980–1986

Important Product Notes

Please send warranty card directly to S&S to activate warranty, and S&S will send out a Complimentary S&S Mechanics Jacket for the size indicated.

Shipping Note

Due to safety regulations, this item can only be shipped via UPS Ground within the contiguous U.S. It cannot be shipped using any of our Worldwide shipping options. An additional shipping charge of $125.00 will be applied for shipments within the contiguous U.S. Shipping charges outside the contiguous U.S. are calculated by weight and dimension during checkout.

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