SBF Ultra Gold R/A's - 1.6 Ratio 3/8 Stud

The SBF Ultra Gold R/A's - 1.6 Ratio 3/8 Stud by COMP CAMS represents a precision-engineered rocker arm assembly designed for high-performance small-block Ford applications. These roller rocker arms are purpose-built for serious engine builders, performance shops, and motorsports competitors who demand reliable, repeatable valve actuation under sustained load. If you're upgrading a stroker engine, building a bracket racing platform, or restoring a classic muscle car to exceed factory performance limits, this component is engineered to deliver consistent mechanical advantage and reduced parasitic drag compared to traditional stamped steel rockers.

The 1.6 ratio geometry of the SBF Ultra Gold R/A's defines the relationship between pushrod and valve stem travel, amplifying valve lift by 60 percent and allowing increased port flow without radical camshaft profiles that risk valve float or detonation. The 3/8 stud pattern ensures secure mounting to standard SBF cylinder heads while maintaining concentricity critical for consistent valve events across all eight cylinders. Ultra Gold plating provides superior corrosion resistance and heat dissipation compared to zinc or nickel finishes, an advantage in high-heat engine bays and extended track duty. The roller design minimizes friction at the pushrod cup interface, reducing heat generation and extending component life under high-RPM operation—a measurable benefit over flat-tappet alternatives in competition and high-mileage street engines.

These rocker arms are ideal for enthusiasts building or refreshing small-block Ford heads—whether 289, 302, 351W, or similar displacement platforms—and are compatible with aftermarket intake manifolds, cylinder heads, and cam profiles that demand responsive, accurate valve timing. Installation requires proper setups using dial indicators to verify rocker geometry and valve clearance, ensuring optimal pushrod angles and eliminating binding. The 7.87-pound assembly (per pair or set) integrates seamlessly with both street and strip applications, delivering measurable improvements in mid-range torque and peak power when paired with corresponding cam timing and induction upgrades. Verify stud hole diameter and head casting number against your specific platform before purchase to confirm fitment.