# S&S Cycle 99-06 BT T124 Long Block Engine w/ 585 Cam - Silver

The 124 cubic inch T124 low compression Long Block engine fits 1999-'06 HD big twins except 2006 Dyna models. Long Block engines do not include a fuel or ignition system, so they can be used for either carbureted or EFI applications. If you already have a performance ignition, larger carburetor or a larger throttle body and EFI tuner, they can be used with this engine. The cylinder heads are specially machined to compensate for the longer cylinders so a stock length manifold or throttle body will fit perfectly, and the cylinder head breathers are compatible air cleaners designed for a stock engine. Engine features 4-5/8" stroke X 4-1/8" bore at 10.2:1 compression, S&S 585 gear drive Easy Start cams, S&S TC3 cam plate and oil pump, and silver powder coat finish that matches stock engine components.

-   This engine has slightly less compression than a S&S high performance T124 engine, making it more tolerent of variations in fuel quality, and a better choice for heavier vehicles
-   Stock non programable engine management systems should not be used because they are not designed for an engine this large
-   T series engines are not compatible with HD Softail models
-   Two year warranty

This Part Fits:

Year

Make

Model

Submodel

1999-2006

Harley-Davidson

FLHR Road King

Base

2004-2006

Harley-Davidson

FLHRS Road King Custom

Base

1999-2006

Harley-Davidson

FLHT Electra Glide Standard

Base

2003

Harley-Davidson

FLHTC Electra Glide Classic

Base

2006

Harley-Davidson

FLHX Street Glide

Base

1999-2002

Harley-Davidson

FLTR Road Glide

Base

1999-2005

Harley-Davidson

FXD Dyna Super Glide

Base

2005

Harley-Davidson

FXDC Super Glide Custom

Base

1999-2005

Harley-Davidson

FXDL Dyna Low Rider

Base

1999-2005

Harley-Davidson

FXDWG Dyna Wide Glide

Base

2001

Harley-Davidson

FXDWG2 CVO Dyna Wide Glide

Base

2002

Harley-Davidson

FXDWG3 CVO Dyna Wide Glide

Base

1999-2005

Harley-Davidson

FXDX Dyna Super Glide Sport

Base

2004-2005

Harley-Davidson

FXDXI Dyna Super Glide Sport

Base

2001-2003

Harley-Davidson

FXDXT Dyna Super Glide T-Sport

Base

## Details

- **Price:** 12445.68 CAD
- **Vendor:** S&S Cycle
- **Type:** Engines

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 12445.68 CAD | In stock |

## Images

- Photo - Primary

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/s-s-cycle-99-06-bt-t124-long-block-engine-w-585-cam-silver)
> Updated: 2026-07-13