Hardened Rocker Shaft
Manfactured In The United States Of America
From Heat Treated American Mill Sourced Chrome-Moly-Nickel Steel,
Nitrided To A Surface Hardness Of Rc 70 for Maxinum Surface Wear Life.
Especially Suited For Use In High Performance Applicatons
Where High Valve Spring Pressure Load Conditions Exist.
4 required.