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S&S Big Twin Super Stock Cylinder Heads

(1 review)

Item: 342428

$1367.96 – $1520.96

Select Your Vehicle - Fitment Guaranteed

S&S Big Twin Super Stock Cylinder Heads


S&S Super Stock cylinder heads have high flowing ports and a specially shaped combustion chamber and contoured piston dome are what make makes these heads produce power. The increased "squish" area of this design sets up a controlled turbulence in the combustion chamber. That turbulence improves flame travel for a more efficient burn and reduced detonation. Requires S&S Super Stock pistons, sold separately.

  • Machined with a stock bolt pattern
  • Larger, more open combustion chamber presents less resistance to air flow around the valves
  • 2.000 inch intake valves and 1.605 inch exhaust valves
  • Special "cast to shape" intake ports with a special directional fin for improved air flow
  • Precision CNC machined from heat treated aircraft quality aluminum castings
  • Complete head assembly with valves and S&S .640 inch lift springs
Specification Details
Bore Varies (make selection above)
Color Varies (make selection above)
Country of Origin USA
Engine Type Varies (make selection above)
Finish Varies (make selection above)
Material Aluminum
Spark Plug Type Varies (make selection above)

Vehicle Fitment


Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.

Harley Davidson
  • CVO FXR2 1999
  • CVO FXR3 1999
  • FL 80 Electra Glide 1980
  • FLH 80 Electra Glide Heritage 1981-1983
  • FLH Electra Glide 1970-1985
  • FLHC Electra Glide Classic 1979-1982
  • FLHR Electra Glide Road King 1994
  • FLHR Road King 1995-1999
  • FLHRCI Road King Classic 1998-1999
  • FLHRI Road King 1996-1999
  • FLHS Electra Glide Sport 1977, 1980-1993
  • FLHT Electra Glide 1982-1983, 1986-1987
  • FLHT Electra Glide Standard 1995-1999
  • FLHTC Electra Glide Classic 1983-1999
  • FLHTC Liberty Electra Glide Classic Liberty 1986
  • FLHTCI Electra Glide Classic 1996-1999
  • FLHTCU Ultra Classic Electra Glide 1989-1999
  • FLHTCUI Ultra Classic Electra Glide 1995-1999
  • FLHX Electra Glide Special 1984-1985
  • FLST Heritage Softail 1986-1990
  • FLSTC Heritage Softail Classic 1988-1999
  • FLSTF Softail Fat Boy 1990-1999
  • FLSTN Heritage Softail Nostalgia 1993
  • FLSTN Heritage Softail Special 1994-1996
  • FLSTS Heritage Springer Softail 1997-1999
  • FLT Tour Glide 1979-1983
  • FLTC Tour Glide Classic 1980-1991
  • FLTCU Ultra Classic Tour Glide 1989-1995
  • FLTCUI Ultra Classic Tour Glide 1996
  • FLTD Tour Glide 1983
  • FLTR Road Glide 1998-1999
  • FLTRI Road Glide 1998-1999
  • FX 1200 Super Glide 1971-1978
  • FXB Sturgis 1980-1982
  • FXD Dyna Super Glide 1995-1999
  • FXDB Dyna Daytona 1992
  • FXDB Dyna Sturgis 1991
  • FXDC Dyna Glide Custom 1992
  • FXDG Disc Glide 1983
  • FXDL Dyna Low Rider 1993-1999
  • FXDS-CONV Dyna Convertible 1994-1999
  • FXDWG Dyna Wide Glide 1993-1999
  • FXE 1200 Super Glide 1973-1978
  • FXE Super Glide 1981-1984
  • FXEF Super Glide Fat Bob 1979-1981, 1985
  • FXLR Low Rider Custom 1987-1994
  • FXR Super Glide 1986-1994
  • FXR Super Glide II 1982-1983
  • FXRC Low Glide 1985
  • FXRC Low Rider Chrome 1987
  • FXRD Grand Touring Edition 1986
  • FXRDG Disc Glide 1984
  • FXRS Low Glide 1982-1992
  • FXRS Super Glide II 1982-1983
  • FXRS-CONV Low Rider Convertible 1990-1993
  • FXRS-SP Low Rider Sport Edition 1987-1993
  • FXRT Sport Glide 1983-1992
  • FXS Super Glide Low Rider 1977-1979, 1981-1982
  • FXSB Low Rider 1983-1985
  • FXST Softail 1984-1990
  • FXST Softail Standard 1999
  • FXSTB Softail Night Train 1999
  • FXSTC Softail Custom 1986-1999
  • FXSTS Springer Softail 1988-1999
  • FXSTSB Softail Bad Boy 1995-1997
  • FXWG Wide Glide 1980-1986

Customer Reviews

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American Made

By   on  Verified Purchaser

These super stock heads are a beautiful set of heads. Top notch American made products from S&S. Wish the matching pistons and cylinder's were available sooner, worth the wait though.


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Questions & Answers

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How much horse power will that add?

Without knowing exactly what bike you're putting it on, or the overall state of tune that bike happens to be in, it's hard to say exactly how much extra power you'd get out of these heads. What we can tell you is S&S claims that, when using a stock cam - you can get at least another 10 horsepower out of the engine, so long as you also use the required S&S Superstock pistons.

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