S&S offers a truly complete 124” engine to replace 1999-2006 stock Big Twin engines, except for the 2006 Dyna models.
S&S T124 engines are available in silver powdercoat, wrinkle black and now the New Black Edition.
Match the original engine in your bike or go for a custom look.
A lot of riders have already invested in performance upgrades for their stock engine by the time they are ready to move up to a complete big inch engine. Wouldn’t it be nice to be able to save some money by using some of those items on your new engine? Well now you can!
Star Power is now offering S&S Cycle T-Series engines for 1999-’06 big twins without fuel or ignition systems. So if you have already added a performance carburetor or an EFI throttle body and tuner to your stock engine, you can use it on your new engine. A carb or throttle body that fits a stock engine will fit the new S&S engine because the heads are specially machined to compensate for the increased cylinder length so a stock length manifold will fit. If you’ve installed a performance ignition or EFI tuner, you can use it.
S&S is also introducing the T124LC engine, which has slightly lower compression and a shorter duration cam set. This engine is ideal for heavy vehicles like fully loaded baggers and trikes. Lower compression makes the T124LC more resistant to knock and detonation, and promotes better engine life and dependability.
T124 - 124 cubic inches, hot-rod performance, 640 Easy Start Cams
T124LC - 124 cubic inches with slightly lower compression, 585 Easy Start Cams
S&S T-Series Long Block engines don't come with a fuel or ignition system.
Perfect for riders who already have a high performance ignition and carb or EFI throttle body and tuner.
Since the heads are specially machined to fit a stock length manifold and breathing system, an air cleaner, carb, or throttle body that fit a stock engine will fit your new S&S engine!
Note: If a different exhaust or intake system is used, the fuel maps must be modified.
It is highly recommended by S&S Cycle that this tuning be done by a certified S&S VFI tuning center like Star Racing.
Features and Benefits
- No fuel system or ignition systems included - Use what you already have (See Notes below)
- Special Head machining – Fits stock length intake manifolds (S&S manifold size 410)
- Stock style breathing system – stock breather spacing and function is compatible with
stock and most performance air cleaners
- Same quality components and performance as our complete T-Series engine
|S&S® T124 Engine Specifications
||S&S Forged Flat Top
||S&S Forged Dished