- Converts stock engines to 124" for non-balanced Twin Cam models.
- Complete kit with S&S heads, pistons, cams, tappets, pushrods, rocker arms, hardware and gaskets.
- Made in the USA; EFI recalibration required. Fuel or ignition system not included.
- Verify all clearances and assembly specifications before installation.
Engine
Active filters
Replacement part for valve stem kits, designed for reliable sealing and easy installation.
Vintage-style S&S engine package for '70–'99 custom chassis, featuring Super Stock® components and generator-area oil filter mounting for straightforward installation.
Replacement parts for valve stem kits that provide a reliable seal and help prevent leaks.
High-compression T124 long block with Super Stock heads and TC3 oil pump. Fits stock-length intake manifolds; head machining compensates for non-stock cylinder length. No fuel or ignition systems included. Not compatible with Softail models.
Replacement parts for valve stem kits. Ideal for maintenance and repairs.
Comprehensive kit to upgrade a stock Shovelhead; includes cylinders, pistons, flywheel assembly, rods, pushrods, gaskets and a heavy-duty top motor mount.
Complete bolt-in engine performance kit from S&S. Includes cylinders, piston kits with pins and clips, Easy Start® cams, Quickee pushrods, TC3 cam support plate and oil pump, and precision hydraulic tappets. Made in USA. Not for '06 Dyna; '99–'04 Twin Cams need separate valve spring kit.
Long block engine with Super Stock™ heads and stock-style breathing; does not include fuel or ignition components.
High-performance S&S T143 long block with CNC-machined B3 heads and Super Stock T2 crankcases. Does not include carburetor, intake, or ignition; exhaust required.
Bolt-in engine kit that increases displacement to 100 ci and improves valvetrain durability. Includes cylinders, piston kits, S&S 585 cams, Quickee pushrods, TC3 cam support plate and oil pump, and precision hydraulic tappets. Not for '06 Dyna; not compatible with S&S 79 cc Super Stock® heads.
Complete T-Series long-block with Super Stock™ heads and T2 crankcase; fits stock-length intake manifolds and stock-style air cleaners.
Complete bolt-in engine performance kit containing S&S cylinders, piston kits, S&S 585 cams, Quickee pushrods, TC3 cam support and oil pump, and precision hydraulic tappets. See compatibility notes before ordering.
Complete T143 long block assembled with S&S performance components. Fits stock chassis; exhaust and ignition/carbs sold separately.
- High compression long block with special head machining for stock length intake manifolds (S&S manifold size 410)
- Includes Super Stock™ heads, crankcase, high flow oil pump, cam cover, and easy start 640 gear drive cams
- Stock style breathing system compatible with stock and most performance air cleaners
- No fuel system or ignition systems included; oil line installation kit required
- Made in the USA