# S&S Cycle 99-06 BT 4in Bore 4in Stroke Cylinder Kit - Wrinkle Black w/ Highlight

Inspired by our Pro Stock Drag Race engines, these updated big bore kit utilizes a Ductile Cast Iron liner wrapped in cast aluminum for optimum thermal conductivity and performance. Bolt-in kits do not require machining, rebalancing or engine removal, and include just about everything you'll need to complete the installation. The biggest cylinder bore that can be installed in a stock crankcase without machining!

-   Although not mandatory, we recommend adding an oil cooler to bikes ridden in warmer climates
-   Complete kits include cylinders, pistons, gaskets, and instructions
-   Bolts in. No machining, balancing, or splitting the crankcases
-   Wrinkle black cylinders - matches stock finish
-   Low friction Ductile Cast Iron liner
-   88" engines are boosted to 100"
-   10.5:1 Compression

This Part Fits:

Year

Make

Model

Submodel

1999-2006

Harley-Davidson

FLHR Road King

Base

1999-2006

Harley-Davidson

FLHRCI Road King Classic

Base

2000-2006

Harley-Davidson

FLHRI Road King

Base

2004-2006

Harley-Davidson

FLHRS Road King Custom

Base

1999-2005

Harley-Davidson

FLHTC Electra Glide Classic

Base

1999-2006

Harley-Davidson

FLHTCI Electra Glide Classic

Base

1999-2006

Harley-Davidson

FLHTCUI Electra Glide Ultra Classic

Base

2006

Harley-Davidson

FLST Heritage Softail

Base

1999-2006

Harley-Davidson

FLSTC Heritage Softail Classic

Base

2001-2006

Harley-Davidson

FLSTCI Heritage Softail Classic

Base

1999-2006

Harley-Davidson

FLSTF Fat Boy

Base

2001-2006

Harley-Davidson

FLSTFI Fat Boy

Base

1999-2006

Harley-Davidson

FLTR Road Glide

Base

1999-2006

Harley-Davidson

FLTRI Road Glide

Base

1999-2006

Harley-Davidson

FXD Dyna Super Glide

Base

1999-2005

Harley-Davidson

FXDL Dyna Low Rider

Base

2004-2006

Harley-Davidson

FXDLI Dyna Low Rider

Base

1999-2006

Harley-Davidson

FXDWG Dyna Wide Glide

Base

2004-2006

Harley-Davidson

FXDWGI Dyna Wide Glide

Base

1999-2005

Harley-Davidson

FXDX Dyna Super Glide Sport

Base

2001-2003

Harley-Davidson

FXDXT Dyna Super Glide T-Sport

Base

1999-2006

Harley-Davidson

FXSTB Night Train

Base

2001-2006

Harley-Davidson

FXSTBI Night Train

Base

2000-2006

Harley-Davidson

FXSTD Softail Deuce

Base

2001-2006

Harley-Davidson

FXSTDI Softail Deuce

Base

2003-2004

Harley-Davidson

FXSTDSE Screamin Eagle Softail Deuce

Base

2001-2006

Harley-Davidson

FXSTI Softail Standard

Base

1999-2006

Harley-Davidson

FXSTS Springer Softail

Base

2001-2006

Harley-Davidson

FXSTSI Springer Softail

Base

## Details

- **Price:** 2148.57 CAD
- **Vendor:** S&S Cycle
- **Type:** Piston Sets - Powersports

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2148.57 CAD | In stock |

## Images

- Photo - Primary
- User 1

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/s-s-cycle-99-06-bt-4in-bore-4in-stroke-cylinder-kit-wrinkle-black-w-highlight)
> Updated: 2026-07-01