PROFORM 66914C SBC Roller Rocker Arms, 1.50 Ratio, 3/8-Inch Stud Mount, Set of 16

Upgrade your Small Block Chevy valvetrain with PROFORM 66914C full-roller rocker arms. Designed for performance-focused street and racing applications, this complete set includes 16 rocker arms with a 1.50:1 ratio and 3/8-inch stud-mount compatibility. The full-roller design helps reduce friction at the valve tip while supporting smooth, consistent valvetrain operation.
The self-aligning construction helps keep each rocker arm properly positioned over the valve, eliminating the need for separate guide plates in compatible applications. Lightweight aluminum construction supports reduced valvetrain mass, while the blue anodized finish provides corrosion resistance and a distinctive appearance under the valve covers. These rocker arms are engineered as a direct performance upgrade for suitable Small Block Chevy cylinder head and stud combinations.
Feature: Full-roller rocker arm design helps reduce friction and promote efficient valve motion. Feature: 1.50:1 ratio supports the original-style rocker geometry for compatible Small Block Chevy applications. Feature: 3/8-inch stud mount fits compatible SBC valvetrain assemblies. Feature: Self-aligning design helps maintain proper rocker-to-valve positioning. Feature: Aluminum construction provides strength with reduced weight. Feature: Blue anodized finish adds durability and a clean performance appearance. Feature: Complete set of 16 supports installation on a standard V8 engine.
Verify cylinder head compatibility, stud size, valve cover clearance, pushrod geometry, and required valve adjustment procedures before installation. PROFORM part number 66914C is intended for applications using compatible Small Block Chevy components and should be installed according to the engine builder’s specifications.

Features:

• Full-roller rocker arm design helps reduce friction and promote efficient valve motion

• 1.50:1 rocker ratio for compatible Small Block Chevy valvetrains

• 3/8-inch stud-mount configuration

• Self-aligning design helps maintain proper rocker-to-valve positioning

• Lightweight aluminum construction

• Blue anodized finish

• Set of 16 rocker arms for standard V8 applications