BBC Roller Rocker Arms - 1.7 Ratio- 7/16in Stud

The PROFORM BBC Roller Rocker Arms - 1.7 Ratio, 7/16in Stud is a precision-engineered upgrade designed for serious big block Chevy engine builders and performance enthusiasts. These roller rocker arms enhance valve lift and duration control while minimizing friction losses across the engine's speed range.

Constructed as a complete set of 16 units, each arm features a full roller design with aluminum construction and a blue anodized finish, ensuring durability and corrosion resistance. The 1.7 ratio geometry multiplies camshaft lift by 1.7 times at the valve, allowing for aggressive cam profiles that improve airflow without compromising reliability.

These roller rocker arms are ideal for engine builders, race teams, and restorers working on big block Chevy platforms, including 454, 427, and 402 variants. The 7/16-inch stud mount design ensures secure fastening to standard BBC cylinder heads, while the roller bearing design reduces parasitic drag compared to traditional needle bearing rocker arms.