BBC Rocker Arm - 1.7 Ratio 7/16 Stud

The BBC Rocker Arm - 1.7 Ratio 7/16 Stud from Sharp Rockers is purpose-built for serious big-block Chevy engine builders and performance enthusiasts seeking reliable valve actuation in high-RPM applications. This full roller design replaces worn OEM rockers or upgrades stock components when maximizing lift and duration in custom cam packages. Whether you're building a street performance engine, preparing a competition platform, or restoring a classic big-block to original specs, a quality rocker arm is non-negotiable for consistent valve timing and reduced parasitic friction losses.

Manufactured from aluminum and finished in orange anodize for durability and corrosion resistance, this rocker arm features a 1.7:1 mechanical advantage ratio—a proven ratio that delivers solid lift multiplication without excessive complexity. The full roller design minimizes friction at the pushrod and valve stem contact points, reducing wear and heat generation during sustained high-RPM running. The 7/16-inch stud mount design ensures compatibility with standard big-block Chevy cylinder head configurations, providing a direct bolt-on installation path for most BBC platforms built after the mid-1970s.

Mechanics and engine builders rely on Sharp Rockers for applications ranging from mild 350–454 strokers to carbureted big-block builds and fuel-injected street engines. This rocker arm performs equally well on hydraulic cam systems and solid-lifter setups, provided pushrod length and lobe timing are properly matched. Installation is straightforward on any big-block Chevy with 7/16-inch stud-mounted heads; verify pushrod geometry and preload to ensure optimal valve actuation and eliminate unnecessary wear. Each rocker is sold individually, so confirm your engine's total rocker arm count before ordering.