S&S CYCLE T124 High Compression Long Block Engine — 124" displacement, 10.8:1 compression – 07-16 Touring, 07-15 CVO

The T124 high compression long block is a performance-focused long block designed for builders who require stock-style fitment and ease of assembly.

Key features include:

• High compression design for increased power.
• Oil line installation kit required; oil lines not included.
• No fuel system or ignition systems included, allowing custom installation choices.
• Special head machining fits stock length intake manifolds (S&S manifold size 410) and maintains stock breather vent bolt location for compatibility with stock style air cleaner back plates.
• Stock style breathing system compatible with stock and most performance air cleaners.
• Includes Super Stock™ heads, crankcase, high flow oil pump, cam cover, and easy start 640 gear drive cams.
• Made in the USA.

Cylinder heads are specially machined to compensate for the non-stock cylinder length, ensuring compatibility with stock length intake runners and throttle bodies while preserving proper breather placement for air cleaner fitment.