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The S&S Cycle T124 Long Block Engine offers high-performance power tailored for Harley-Davidson FXD and FXDWG models. Constructed with precision-machined Super Stock™ heads and a robust crankcase, this engine delivers excellent airflow and durability for demanding riding conditions. The kit includes a high-flow oil pump, cam cover, and easy start 640 gear drive cams, providing a reliable backbone for customized performance builds. Designed with stock compatibility in mind, the engine features special head machining that aligns with stock-length intake manifolds and throttle bodies, ensuring seamless integration with your existing setup. The breather vent bolt has been repositioned to match stock locations, allowing stock-style air cleaner back plates to fit perfectly, simplifying installation and maintenance. This engine does not include fuel or ignition systems, giving you flexibility to choose components that suit your riding style. Made in the USA, the T124 Long Block is engineered for enthusiasts seeking a combination of high power and compatibility with stock Harley Davidson parts.
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