Description
A quality rocker box is fundamental to engine reliability and oil circulation in Twin Cam applications. S&S Cycle’s die-cast design delivers a positive O-ring seal that eliminates leaks while maintaining the clean aesthetics of a custom build. Most installations work with your stock engine in frame, making this an accessible upgrade for builders who demand precision engineering.
- S&S Cycle die-cast construction
- Positive O-ring seal
- Twin Cam 90 compatible
- MPN: 90-4110
- Includes gaskets, mounting bolts
- Rocker arm supports included
- Bolt-on installation (most applications)
- Stock frame compatible
- Buell models require minor fabrication
- Made in the U.S.A.
- Builder supplies rocker shafts, arms
- Verify operating clearances
