Manton Fathead Hemi Rocker Arm Shaft ( Exhaust )
At Manton, valve train stability drives us to create rigid shafts. We use .250 wall thickness 4130 Chromoly steel, undergo meticulous manufacturing. Each shaft is heat-treated and machined in a four-axis center. They're centerless ground, hard chromed, and finish ground for durability. This hard chrome surface ensures exceptional wear resistance, ideal for any application, including street Hemis. Threaded plugs at both ends prevent oil leaks, eliminating concerns over worn O-rings. Proudly Made in America, our shafts meet the highest standards of quality.