# S&S Cycle 84-99 BT 3-1/2in .010in Bore Forged Stroker Piston Kit

These forged 3-1/2" bore stroker pistons for 1984-'99 HD® Evolution® big twin engines are required for the S&S 89" stock bore stroker kits, which include S&S 4-5/8" stroke flywheels. Pistons are designed to be used with stock cylinder heads or with S&S Performance Replacement heads. Low silicon forged material and advanced S&S piston skirt design result in high strengh and low noise. 3-1/2" +.010" bore.

This Part Fits:

Year

Make

Model

Submodel

1997-1999

Harley-Davidson

FLHR Road King

Base

1998-1999

Harley-Davidson

FLHRCI Road King Classic

Base

1996-1997

Harley-Davidson

FLHRI Road King

Base

1984,1987-1993

Harley-Davidson

FLHS Electra Glide Sport

Base

1996-1999

Harley-Davidson

FLHTCI Electra Glide Classic

Base

1989-1997

Harley-Davidson

FLHTCU Electra Glide Ultra Classic

Base

1986-1990

Harley-Davidson

FLST Heritage Softail

Base

1988-1999

Harley-Davidson

FLSTC Heritage Softail Classic

Base

1990-1999

Harley-Davidson

FLSTF Fat Boy

Base

1994-1996

Harley-Davidson

FLSTN Heritage Softail Special

Base

1998-1999

Harley-Davidson

FLTR Road Glide

Base

1998-1999

Harley-Davidson

FLTRI Road Glide

Base

1995-1999

Harley-Davidson

FXD Dyna Super Glide

Base

1993-1999

Harley-Davidson

FXDL Dyna Low Rider

Base

1993-1999

Harley-Davidson

FXDWG Dyna Wide Glide

Base

1987-1994

Harley-Davidson

FXLR Low Rider Custom

Base

1999

Harley-Davidson

FXR2

Base

1999

Harley-Davidson

FXR3

Base

1984-1992

Harley-Davidson

FXRS Low Glide

Base

1984-1992

Harley-Davidson

FXRT Sport Glide

Base

1984-1999

Harley-Davidson

FXST Softail Standard

Base

1999

Harley-Davidson

FXSTB Night Train

Base

1986-1999

Harley-Davidson

FXSTC Softail Custom

Base

1988-1999

Harley-Davidson

FXSTS Springer Softail

Base

1995-1997

Harley-Davidson

FXSTSB Bad Boy

Base

1984-1986

Harley-Davidson

FXWG Wide Glide

Base

## Details

- **Price:** 693.57 CAD
- **Vendor:** S&S Cycle
- **Type:** Piston Sets - Powersports

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 693.57 CAD | In stock |

## Images

- Photo - Primary
- User 1

---

> Source: [Standard Auto Part](https://www.standardautopart.com/products/s-s-cycle-84-99-bt-3-1-2in-010in-bore-forged-stroker-piston-kit)
> Updated: 2026-07-01