BBC Rocker Arms - 1.7 Ratio 7/16 Stud

The BBC Rocker Arms - 1.7 Ratio 7/16 Stud from SHARP ROCKERS deliver the precise valve control and durability that serious big-block Chevy builders demand. Designed for high-performance street and competition engines, these rocker arms are engineered to handle the demands of increased valve lift, aggressive cam profiles, and sustained RPM levels that stock rockers simply cannot support. Whether you're building a stroker motor, upgrading an existing BBC platform, or chasing reliable power in your hot rod, these rockers provide the mechanical advantage and consistency required for repeatable performance.

The 1.7 ratio geometry multiplies camshaft lift by 1.7 times at the valve—critical for maximizing flow through larger ports and breathing capacity without requiring excessive camshaft lift that stresses the entire valvetrain. The 7/16-inch stud design ensures a secure, repeatable mounting interface that resists deflection under valve spring pressure and maintains valve timing accuracy across engine load ranges. Precision machining and quality materials throughout the rocker body and contact surfaces minimize wear and extend service life, even in long-duration, high-lift applications where binding and galling are common failure points.

These rockers are ideal for big-block Chevy engines from 396 to 502 cubic inches and work seamlessly with modern hydraulic roller camshafts, mechanical roller setups, and traditional flat-tappet profiles. Installation requires compatible cylinder head studs and proper pushrod length calculation to maintain correct rocker geometry—a critical step that prevents premature lobe wear and valve train noise. Whether you're rebuilding a vintage Chevelle SS, upgrading a truck engine, or finalizing a street/strip BBC build, these SHARP ROCKERS deliver the mechanical precision and reliability that separates a durable engine from one plagued by valvetrain issues.