Can I use my existing carburetor or EFI system with this engine?

Yes, this S&S T124 Long Block Engine is designed to work with your existing performance carburetor or EFI throttle body and tuner. The heads are specially machined to compensate for the increased cylinder length, allowing a stock-length manifold to fit.

What Harley-Davidson models does this engine fit?

This engine is designed for 1999-2006 Harley-Davidson Big Twin models, including various Road King, Electra Glide, and Street Glide configurations. It is not compatible with HD Softail models.

Does this engine come with a warranty?

Yes, the S&S Cycle T124 Long Block Engine comes with a two-year warranty from S&S Cycle, offering peace of mind for your investment.

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Specifications

Brand: S&S Cycle
Part #: 310-0282A
UPC: 310-0282A

S&S Cycle 99-06 BT T124 Long Block Engine w/ 640 Cams - Wrinkle Black

Name: S&S Cycle 99-06 BT T124 Long Block Engine w/ 640 Cams - Wrinkle Black
Brand: S&S Cycle
SKU: s-s-cycle-s-s-cycle-99-06-bt-t124-long-block-engine-w-640-cams-wrinkle-black-t14-662878
Price: 9612.99 USD
Availability: BackOrder

$9612.99

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

S&S Cycle 99-06 BT T124 Long Block Engine w/ 640 Cams - Wrinkle Black. Lets you reuse your existing performance carb or EFI system.

Key Features

Fits 1999-2006 Harley-Davidson Big Twin models, including Road King, Electra Glide, and Street Glide.
Features special head machining to accept stock-length intake manifolds.
Compatible with stock and most performance air cleaners due to stock-style breathing system.
Allows reuse of your existing performance carburetor or EFI throttle body and tuner.
Includes 640 cams for a balance of power and rideability.
Comes in a Wrinkle Black finish.

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About this part

Product Details

S&S Cycle is well-known for building powerful V-twin engines that offer a significant step up from stock. If you're looking to upgrade your 1999-2006 Harley-Davidson Big Twin, their T124 Long Block Engine is a solid choice that lets you leverage some of the performance parts you may have already invested in. This engine is designed to work with your existing performance carburetor or EFI throttle body and tuner, saving you money and hassle.

What makes this engine a smart move is the special head machining. This allows you to use a stock-length intake manifold, meaning your current setup will likely bolt right up. It also features stock-style breathing system compatibility, so your air cleaner will fit without issue. This T124 engine uses the same quality components and delivers the same performance as their complete T-Series engines, but without the fuel system or ignition components, allowing you to reuse what you already have. It comes in a sharp Wrinkle Black finish, and the 640 cams are a popular choice for a good balance of power and rideability.

This long block engine is designed for 1999-2006 Big Twin models, including popular bikes like the Harley-Davidson Road King, Electra Glide, and Street Glide. Please note that this engine is not compatible with HD Softail models and is not CARB approved, so it cannot be shipped to California. It comes with a two-year warranty from S&S Cycle.