S&S Cycle 310-0835B T124 124ci Long Block Engine Black Edition

The S&S Cycle 310-0835B is a T124 Series Long Block Engine in Black Edition finish, displacing a massive 124 cubic inches (2032cc). Engineered as a direct bolt-in upgrade over stock Twin Cam powerplants, this American-made V-twin delivers a dramatic increase in horsepower and torque over the factory engine — without requiring frame modifications or cutting.

Built around S&S Super Stock cylinder heads and a T2 crankcase, the T124 features specially machined heads that accommodate stock-length intake manifolds, making it compatible with stock and most performance air cleaners. The gloss black rocker covers, gear cover, tappet blocks, and pushrod tubes give this engine an aggressive, finished appearance straight out of the box.

Key Features:

• 124 cubic inch (2032cc) displacement for maximum street performance
• 10.8:1 high compression ratio with forged flat-top pistons
• 4-1/8" bore x 4-5/8" stroke
• S&S Easy Start 640 gear-drive cams for effortless starting
• S&S TC3 cam plate and high-flow oil pump
• S&S forged rocker arms for durability under high-performance use
• Large cooling fins for increased thermal efficiency
• Special head machining compatible with stock-length intake manifolds (S&S manifold size 410)
• Stock-style breather system — works with stock and most aftermarket air cleaners
• Gloss black rocker covers, gear cover, tappet blocks, and pushrod tubes
• Made in the USA
• 2-year warranty

Important Notes: No fuel system or ignition system is included. An oil line installation kit is required (sold separately). Cylinder heads use 99–05 style porting; owners of 2006 models will need 99–05 style offset intake flanges. T-Series engines are not compatible with HD Softail models and are not recommended for Tri-Glide or other three-wheel configurations.