Upgrade your Big Block Chevy 454 valvetrain with Speedmaster's DNA® Stainless Steel Shaft Mount Roller Rocker Arms (PN 1-261-032). Featuring a 1.7 rocker ratio for increased lift and improved valve event performance, these rockers are constructed from stainless steel for exceptional strength, corrosion resistance, and long service life under high-performance and racing conditions. The shaft mount design provides superior geometry consistency and stability compared to stud-mount setups, helping to reduce valvetrain flex and wear at elevated RPM.
Speedmaster's roller-tip design minimizes friction at the valve stem contact point, promoting smoother valve operation, reduced heat buildup, and improved engine efficiency. Engineered specifically for the Big Block Chevy 454 application, these rocker arms are an ideal upgrade for street performance, hot rod, and competition builds where valvetrain reliability and power gains are a priority.
