SBC Roller Rocker Arms 1.7 Ratio 7/16 Stud

The SCORPION PERFORMANCE SBC Roller Rocker Arms 1.7 Ratio 7/16 Stud are precision-engineered components designed for small block Chevy engines that demand serious performance upgrades. These roller rocker arms represent a fundamental shift from traditional stamped steel rockers, offering the reliability and efficiency needed in race-prepped street engines, circle track applications, and high-RPM builds. Supplied as a complete set of 16 for a full small block Chevy cylinder head, they eliminate guesswork and compatibility issues when upgrading your valvetrain.

The 1.7 ratio delivers enhanced valve lift without requiring a more aggressive camshaft profile, translating to improved cylinder fill and better breathing at peak power RPM. Full roller design minimizes friction across the valve stem interface—critical for sustained high-RPM operation where stamped arms generate heat and parasitic loss. The 7/16-inch stud mount provides a secure, conventional fastening method that integrates seamlessly with standard small block Chevy heads, while aluminum construction keeps reciprocating mass low, allowing the engine to accelerate faster and rev more freely. Hard-anodized blue finish protects against corrosion and identifies this as a race-grade component built to withstand repeated heat cycles and demanding duty.

Enthusiasts upgrading small block Chevy engines—whether for bracket racing, street performance, or engine dyno work—will appreciate the immediate gains in valve actuation precision and reduced valvetrain noise. Installation requires basic cylinder head familiarity and proper pushrod length verification to maintain correct rocker geometry. These rockers work with most aftermarket cam profiles and aggressive street or race grinds, making them an ideal companion to performance intake manifolds, cylinder head porting, and fuel system upgrades. Proper lubrication via existing oil galleries and periodic inspection of rocker geometry will ensure years of trouble-free service and consistent power delivery.