PROFORM 66909C SBC Roller Rocker Arms, 1.50 Ratio, 7/16-Inch Stud Mount, Set of 16

Upgrade your Small Block Chevy valvetrain with PROFORM 66909C roller rocker arms, engineered for reliable performance and reduced friction. Each rocker features a 1.50:1 ratio and a 7/16-inch stud-mount design, making this set a practical choice for performance-oriented SBC engine builds requiring precise valve actuation.
Constructed from lightweight aluminum, these full-roller rocker arms help reduce valvetrain drag while supporting smooth, consistent operation at elevated engine speeds. The full-roller design promotes efficient movement across the valve tip and pushrod interface, helping minimize wear and improve overall valvetrain durability when properly installed and adjusted.
The blue anodized finish provides corrosion resistance and a distinctive appearance under the valve covers. This PROFORM set includes 16 rocker arms for a complete Small Block Chevy application, making it suitable for rebuilds, upgrades, and custom performance projects. Verify stud size, cylinder-head compatibility, valve-train geometry, and required clearance before installation.

Features:

• Brand: PROFORM

• Part Number: 66909C

• Application: Small Block Chevy engines

• Rocker Ratio: 1.50:1

• Mounting Style: 7/16-inch stud mount

• Design: Full roller

• Material: Aluminum

• Finish: Blue anodized

• Quantity: Set of 16