Description
If you’re rebuilding or upgrading your Evolution engine, quality rocker boxes are fundamental to reliable valve train operation and oil containment. S&S Cycle’s die-cast rocker boxes deliver a positive O-ring seal that eliminates leaks while maintaining factory fitment in most applications—meaning you can upgrade without extensive frame modifications. Built in the U.S.A., these boxes give you the foundation for a bulletproof top end.
- Positive O-ring seal
- Leak-free operation
- Bolt-on installation
- Fits stock frame
- Includes gaskets, bolts
- Rocker arm supports
- Requires rocker shafts*
- Requires rocker arms*
- Buell models need modification
- Die-cast construction
- Made in U.S.A.
- MPN: 90-4095
*Assembler must source separately. Engine builder responsible for confirming operating clearances.
