Cast flat-topped pistons for use with stock heads from S&S
Piston kit includes two pistons, rings, wristpins, and clips
Fits Evolution Big Twin engines with 3-1/2" bore
Made in the USA
Product Note:
Specification
Details
Bore
3-1/2 in.
Country of Origin
USA
Displacement
80 CI
Engine Type
Evolution Big Twin
Material
Aluminum
OEM Reference
21943-83
Piston Type
Cast
Quantity
2
Size Over Standard
0.020 in. Larger than Stock
Stroke
4.25 in.
Warranty
1 Year Manufacturer Warranty
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
FLH Electra Glide 1985
FLHR Electra Glide Road King 1994
FLHR Road King 1995-1998
FLHRCI Road King Classic 1998
FLHRI Road King 1996-1998
FLHS Electra Glide Sport 1985-1993
FLHT Electra Glide 1986-1988
FLHT Electra Glide Standard 1995-1998
FLHTC Electra Glide Classic 1985-1998
FLHTC Liberty Electra Glide Classic Liberty 1986
FLHTCI Electra Glide Classic 1996-1998
FLHTCU Ultra Classic Electra Glide 1989-1998
FLHTCUI Ultra Classic Electra Glide 1995-1998
FLHX Electra Glide Special 1985
FLST Heritage Softail 1986-1990
FLSTC Heritage Softail Classic 1987-1998
FLSTF Softail Fat Boy 1990-1998
FLSTN Heritage Softail Nostalgia 1993
FLSTN Heritage Softail Special 1994-1996
FLSTS Heritage Springer Softail 1997-1998
FLTC Tour Glide Classic 1985-1991
FLTCU Ultra Classic Tour Glide 1989-1995
FLTCUI Ultra Classic Tour Glide 1996
FLTR Road Glide 1998
FLTRI Road Glide 1998
FXD Dyna Super Glide 1995-1998
FXDB Dyna Daytona 1992
FXDB Dyna Sturgis 1991
FXDC Dyna Glide Custom 1992
FXDL Dyna Low Rider 1993-1998
FXDS-CONV Dyna Convertible 1994
FXDWG Dyna Wide Glide 1993-1998
FXEF Super Glide Fat Bob 1985
FXLR Low Rider Custom 1987-1994
FXR Super Glide 1986-1994
FXRC Low Glide 1985
FXRC Low Rider Chrome 1986-1987
FXRD Grand Touring Edition 1986
FXRS Low Glide 1985-1992
FXRS-CONV Low Rider Convertible 1989-1993
FXRS-SP Low Rider Sport Edition 1986-1993
FXRT Sport Glide 1985-1992
FXSB Low Rider 1985
FXST Softail 1985-1990
FXSTC Softail Custom 1986-1998
FXSTS Springer Softail 1988-1998
FXSTSB Softail Bad Boy 1995-1997
FXWG Wide Glide 1985-1986
Customer Reviews
Just what I needed
By Thump on
Verified Purchaser
Just what I needed. Engine is going together now.
Good pricing
By chase s. on
Verified Purchaser
I buy a lot of pistons from these guys.
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Questions & Answers
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