SBF Alum. Roller R/A Set 1.6 Ratio 3/8in Stud

The SBF Aluminum Roller Rocker Arm Set with 1.6 ratio and 3/8-inch stud is the go-to upgrade for small-block Ford engine builders seeking improved valvetrain geometry and reliability. Designed for serious performance enthusiasts and machine shops, this rocker arm set transforms engine efficiency by optimizing the relationship between camshaft lift and valve opening. Whether you're building a street engine, a weekend racer, or restoring a classic muscle car, proper rocker arm selection directly impacts horsepower delivery, valve timing precision, and long-term durability of your cylinder head assembly.

ProForm's aluminum construction delivers a critical balance of lightweight design and rigid support, reducing parasitic mass in the valvetrain while maintaining the structural integrity needed for aggressive cam profiles. The 1.6 rocker ratio multiplies camshaft lift by 1.6 times at the valve, meaning a 0.500-inch cam lift becomes 0.800 inches at the valve—ideal for porting work and high-flow heads where maximum valve opening is essential. The 3/8-inch stud diameter ensures secure fastening to modern SBF cylinder heads and accommodates virtually all aftermarket stud girdle configurations. Roller design minimizes friction loss and heat generation compared to traditional poly or shaft-mounted rockers, translating to measurable power gains and extended component lifespan.

This rocker arm set is essential for small-block Ford engines—351W, 302, 289, and compatible displacements—particularly when pairing with performance heads, high-lift cams, or turbo applications where valvetrain geometry matters. Installation requires compatible pushrods, guideplates, and stud girdle components; verify your cylinder head's existing stud configuration before ordering. Mechanics and builders trust ProForm's precision engineering for both naturally aspirated and forced-induction builds where repeatability and performance margins cannot be compromised.