Can I use my stock carburetor with this engine?

Yes, this engine is designed to work with your existing performance carburetor or EFI throttle body. The heads are specially machined to accept stock-length intake manifolds, making your current setup compatible.

What is included with this long block engine?

This long block engine includes the core engine components but does not come with a fuel system or ignition system. You will reuse your existing carburetor or throttle body, tuner, and ignition components.

Does this engine fit all Big Twin models from 1999-2006?

This engine fits most 1999-2006 Big Twin motorcycles, but it is specifically noted as not being compatible with Harley-Davidson Softail models. Always verify fitment for your specific motorcycle.

Specifications

Brand: S&S Cycle
Part #: 310-0279A
UPC: 310-0279A

S&S Cycle 99-06 BT T111 Long Block Engine - Silver

Name: S&S Cycle 99-06 BT T111 Long Block Engine - Silver
Brand: S&S Cycle
SKU: s-s-cycle-s-s-cycle-99-06-bt-t111-long-block-engine-silver-t14-662876
Price: 9277.49 USD
Availability: BackOrder

$9277.49

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 T111 Long Block Engine - Silver. Save money by using your existing performance carburetor or EFI throttle body.

Key Features

Fits 1999-2006 Big Twin motorcycles.
T111 engine displacement for substantial power increase.
Uses your existing performance carburetor or EFI throttle body and tuner.
Specially machined heads accommodate stock-length intake manifolds.
Maintains stock-style breathing system spacing for air cleaner compatibility.
Built with the same quality components as complete S&S T-Series engines.

This engine is designed for 1999-2006 Big Twin motorcycles but is not compatible with Harley-Davidson Softail models. It is also not CARB approved and cannot be shipped to California.

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About this part

Product Details

If you're looking to significantly boost the power and performance of your 1999-2006 Big Twin motorcycle, a complete engine replacement is a major step. The S&S Cycle T111 Long Block Engine is designed for riders who have already invested in performance upgrades like carburetors or EFI systems and want to carry that investment over to a new, larger displacement engine. This engine allows you to reuse your existing fuel and ignition components, saving you money and simplifying the upgrade process.

This T111 engine features specially machined heads that compensate for the increased cylinder length, meaning you can use your stock-length intake manifold. This is a notable detail that makes installation much more straightforward. It also maintains stock-style breathing system spacing, so your current air cleaner setup will likely fit without issue. You're getting the same well-built components and performance you'd expect from a complete S&S T-Series engine, just without the fuel and ignition hardware, allowing you to leverage what you've already purchased.

Keep in mind that this engine is not compatible with Harley-Davidson Softail models. It also comes with a two-year warranty from S&S Cycle, offering peace of mind for this significant investment. Because it does not include a fuel system or ignition, you'll need to ensure your existing components are compatible and in good working order before installation.