Choose Favorites List

    T124 Long Block Engine for 1999-2006 (except 2006 Dyna®) with 640 Cam - Silver

    Item #: 310-0281A
    0.0 out of 5
    0 reviews | Write a Review

    These parts are flying off our shelves and we're currently out.
    Click the link below to check stock at your nearest dealer.

    Enter your email address below to receive notification when it becomes available.

    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!

    S&S is offering 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.


    • No fuel system or ignition systems included - Use what you already have
    • 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 engines
    • Two year warranty

    *T series engines are not compatible with HD Softail models*

    Customer Reviews

    There are no reviews for this product yet. Be the first!

    Write a Review

    Required An asterisk is used to visually indicate that a field is required.
    Would you recommend this product? Required Field
    Cylinder heads on T-Series long block engines are 1999-’05 style. Owners of 2006 models will need to purchase a set of 1999-’05 style, offset intake flanges such as S&S #106-3516. Cylinder heads on these engines are specially machined to compensate for the non-stock cylinder length. As a result, they are compatible with manifolds and throttle bodies with stock length intake runners. In addition, the breather vent bolt locations have been adjusted so they are in the stock location, so stock style air cleaner back plates will bolt up to these engines. 1999-’01 EFI engines equipped with Magneti Marelli® fuel injection will require a performance tuning module such as the DynoJet® Power Commander® 3 or S&S VFI module. The stock dual-bore EFI throttle body is not adequate for T111 or T124 engines. The S&S 58mm EFI single bore throttle body is highly recommended to achieve maximum performance. 2002-’06 EFI engines equipped with Delphi® fuel injection will require a performance tuner such as the DynoJet Power Vision® tuner, Harley-Davidson® Race Tuner, or S&S VFI module. The stock single bore throttle body can not supply adequate air for these large displacement engines. An S&S 58mm throttle body is highly recommended for maximum performance. Carbureted engines will require a performance ignition module that allows adjustments to the advance curves. The stock ignition module is not adjustable, and use of the stock module will likely result in engine damage due to knock from incorrect ignition timing. Performance carburetors are recommended to achieve maximum performance. S&S Super E carbs are ideal for T111 engines in touring applications, but a Super G will produce more top end horsepower. S&S Super G carbs are recommended for T111 engines in performance applications, and for T124 engines in all applications. Not legal for sale or use on CA or EPA pollution controlled motorcycles.